Z-Flex U.S. Inc.

Chimney Liners and Vents

CONTACT INFO
20 Commerce Park N.
Bedford, NH
Toll Free: 800-654-5600
Phone: 603-669-5136
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COMPANY OVERVIEW

Z-Flex® is the leading manufacturer of specialty venting systems for furnaces, boilers, tankless and conventional water heaters, oil heaters, fireplaces, woodstoves, pellet stoves and more.  Z-Flex® pioneered flexible chimney liner solutions and special gas vent (AL29-4C®). A variety of innovations in materials and construction produce products that deliver superior performance, increased efficiency, easier handling and faster, simpler installation, greater reliability, safety and increased service life.

Z-Flex U.S. Inc. is a privately held company committed to continuous advancement in Chimney and Venting solutions. Founded in 1978, The Novaflex Group has one of the broadest product ranges available servicing the commercial ICI HVAC in the hose and ducting marketplace, as well as in the HVAC custom sheet metal, Industrial venting and hose industries, and in commercial exhaust venting Systems.

ALL PRODUCTS

Z-Vent Special Gas Vent Single Wall  

  • Gasketed connections

  • Fusion welded pipe seams

  • No sealant required, no cure time, or no call backs

  • Air tight seam, smooth finish, better fit

  • Metallic special gas vent single wall male end can be cut to length on sit saving time and money.

  • Single and double wall, manufactured in diameters from 3" up to 24"



Available in diameters 3" up to 24in and standard lengths up to 10ft (3in and 4in diameter only). Pipe can be cut to length. The female end of each Z-VENT component incorporates a Double Fail Safe self sealing gasket. Examine all components to ensure that gasket integrity has remained during shipping. Gaskets must be in proper position or flue gases could leak resulting in carbon monoxide poisoning. The installation shall be in accordance with the manufacturer's installation instructions.


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The use of adjustable pipe may be required when the system must be located within extremely tight installation parameters. Available in diameters up to 24".

Please note:
2SVSALS Adjustment range is 7" to 9.9"
2SVSALM Adjustment range is 9" to 13.9"
2SVSPA(05-12) Adjustment range is 2" to 15.75"
2SVSPA(14-24) Adjustment range is 2" to 14.75"

IMPORTANT: *Adjustable pipe can only be used with adjacent pipe. Minimum 18" long adjacent pipe required for full adjustment.
Not to be inserted into fittings.

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Z-Vent 90° elbow is used when a direction change or offset is required. Available up to 24". 

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Z-Vent 45° elbows are used when a direction change or offset is required. Available up to 24".

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30° Elbows are used when a direction change or offset is required. Available up to 24". 

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15° elbows are used when a direction change or offset is required. Available up to 24". 

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A tee is used to connect horizontal and vertical vent sections.



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A tee cap with drain is required at the bottom of a vertical stack. High temperature silicone tubing is available separately.

Available in diameters 3" to 24".

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A Boot Tee is designed to allow a low, flow resistance connection of horizontal and vertical sections. A tee cap is available separately. Available in diameters up to 24".

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Z-Flex new lateral 45° Wye is a completely machine-welded fitting providing a consistent, high quality, pressure tight fitting with easy-flow characteristics designed for gas-fired appliances that produce higher static pressure flue gas exhaust.

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Z-Vent Single Wall Horizontal Drain. Available in 3" to 5" diameters. 

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The nipple size on the drain is 1/2".

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Available in 3" through 5" diameters. Used to drain the condensate on a horizontal run. 

Nipple size on the drain is 1/2".

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Z-Vent Single Wall Drain Pipe. Designed for use in vertical and horizontal applications.

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Angled deflectors force the exhaust air to the left and the right when exiting the box.

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Available in 3", 4" and 5" diameters. Ideal for vinyl siding.

NOTE: To be used for horizontal venting only.

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Available in 3" only. Specified by Weil McLain as the preferred termination.

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Use as a termination, as specified/allowed by the appliance manufacturer.

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Termination Coupling is specified by Weil-McLain.

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Tee openings can be positioned up and down or left to right.

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Prevents entrance of moisture and debris into vent space

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Designed to protect against the entrance of wind, rain and debris in extreme weather conditions.

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Flat flashing provides weather protection where the vent penetrates the roof or chimney. Use on flat or slightly sloped (5° slope maximum) roofs.

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0-30° flashing provides weather protection where the vent penetrates the roof. Use on roofs with a pitch from 5-30° - 0/ 12-5 / 12 slope.

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Other diameters and pitches are available.

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Available in 3" through 24" diameters. For single and double wall.

A fire stop is used on a vertical system to maintain the necessary clearance to combustible materials. 

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Also available as a 3" to 4" increaser, (4" end is female).

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Provides vertical support and covers space between vent and flashing.

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Available in 3" through 24" diameters. For single and double wall.

A fire stop is used on vertical systems to provide support and maintain the necessary clearance to combustible materials.

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Used to up-size a vent system. Recommended for use with vertical vent runs.

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Single Wall Eccentric Increaser - Used to up-size a vent system. Recommended for use with horizontal vent runs.

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Used to downsize a vent system. Recommended for use with vertical vent runs.

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For use in conjunction with flashing to provide weather protection.

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Vent supports are used to provide support to the vent system while maintaining proper clearance to combustible materials. As vertical supports are required after any 10ft run. These supports may also be used to support long horizontal runs, which require support every 6ft. Can be used on horizontal and vertical runs.

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Base support are designed to support the vent base and maintain proper clearance to combustibles.

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Available in 3" through 24" diameters. For single and double wall snap lock.

For use when the vent passes through a horizontal opening. Not required for non-combustible walls.

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Available in 3" through 24" diameters. For single and double wall snap lock. 

For use when the vent passes through a horizontal opening. Not required for non-combustible walls. 

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A guy band is used to stabilize the vent above the roof line or where a vent support can not be used. Secure with 4 guy wires (not included).

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Used to adapt Z-VENT single wall to double wall pipe or flue outlet collar.

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Adapts appliance collar to the Z-Vent® pipe.

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Adapts Z-Vent to Laars, Bosch, Nortec, Takagi, Paloma, Rheem, Modine, Rinnai and Reznor flue outlets.

Available in up to 24" diameters.

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Z-Vent adapter for Lochinvar Knight boiler.

For further information, Lochinvar manuals are available on their website at this link: Lochinvar Manuals.

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Kit includes: (1) 4" termination hood, (1) 4" x 90 degree elbow, (1) 4" x 1' vent pipe, (1) 4" x 1.5' vent pipe, (1) 4" wall thimble, (1) 4" universal adapter.

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Kit includes: (1) 4" termination hood, (1) 4" x 90 degree elbow, (1) 4" x 1' vent pipe, (1) 4" x 1.5' vent pipe, (1) 4" wall thimble, (1) 4" universal adapter with back-flow preventer.

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Kit includes: (1) 3" termination hood, (1) 3" intake hood, (2) 3" x 1.5' pipe, (1) 3" x 90 degree elbow, (1) 3" wall thimble, (1) 3" x 10' combustion air duct with clamps.

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Z-Vent vertical vent kit includes:
1 rain cap
1 top support/storm collar
1adjustable roof flashing

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4" Z-Vent Concentric Vent Termination designed for use with tankless water heaters and high condensing boilers that bring in fresh air intake using a 4" port. (also available in other sizes/combinations of exhaust and intake diameters).

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Needed for use with some appliance adapters to achieve positive pressure seal.

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Constant tension clamps come with a 5/16" hex slotted head and 1/2" wide stainless steel band. Fully adjustable and ideal for making flexible duct connections in diameters ranging from 2" to 24". Offer maximum strength and anti-shear protection. Not recommended for underground applications.

The life of all fabric ducts can be greatly extended when sized correctly according to equipment exhaust requirements. Novaflex offers a complete line of fittings and accessories for use in exhaust systems. Where exhaust fume leakage is of concern, a negative pressure fan system should be incorporated. Please consult a Novaflex factory salesperson for correct sizing for diesel, caustic or high velocity exhaust applications. This will also aid  in reducing exhaust temperatures and static pressures.

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Comes with gear clamp and cable tie.

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Used to strengthen connection between flue outlet and Z-Vent on some applications where a specific appliance adapter is not specified. High temeperature Z-Vent sealant may also be needed along with locking band to ensure a good seal to flue outlet.

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Z-Vent Special Gas Vent Double Wall  

Z-Vent Commercial features:

  • Gasketed connections

  • Fusion welded pipe seams

  • No sealant required, no cure time, no call backs

  • Air-tight seam,. smooth finish, better fit

  • Highest pressure rating in the industry, greater than 5 times the industry standard

  • The female end of each Z-Vent component incorporates a Double Fail Safe self sealing gasket.



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The use of adjustable pipe may be required when the system must be located within extremely tight installation parameters.

IMPORTANT: Adjustable pipe can only be used with an adjacent pipe. Not to be inserted into fittings.

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15 degree elbows are used when a direction change or offset is required.

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30 degree elbow are used when a direction change or offset is required.

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Z-Vent Commercial double wall 45 degree elbows are used when a direction change or offset is required.

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90 degree elbows are used when a direction change or offset is required.

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Designed to increase stack velocity. Extremely low resistance. It is recommended to use tee cap with drain at base of stack.

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A boot tee is design to allow a low, flow resistance connection of horizontal and vertical sections. Tee cap is available separately.

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A lateral 45° is designed to allow a low, flow resistance connection of horizontal and vertical sections. Tee cap is available separately.

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A tee is used to connect horizontal and vertical vent sections. Tee cap sold separately.

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A tee cap with drain is required at the bottom of a vertical stack. High temperature silicone tubing is available separately.

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A tee cap with drain is required at the bottom of a vertical stack. High temperature silicone tubing is available separately.

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Used to up-size a vent system. Recommended for use with vertical vent runs.

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Used to up-size a vent system. Recommended for use with horizontal vent runs.

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Vent supports are used to provide support to the vent system while maintaining proper clearance to combustible materials. As vertical supports are required after any 10ft run. These supports may also be used to support long horizontal runs, which require support every 6ft. Can be used on horizontal and vertical runs.

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Used to drain condensate from the vent system. High temperature drain tube kit sold separately.

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A wall termination is used to terminate a horizontal vent. Th special design resists winds from affecting flue gas flow.

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Use as a termination, as specified/allowed by the appliance manufacturer.

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For use in conjunction with flashing to provide weather protection.

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Z-Vent Roof Jack Support System can be used on all "through the roof" terminations for single or double wall (14" through 24") venting systems with combustible or non-combustible roof structures.

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Base supports are designed to support the vent base and maintain proper clearance to combustibles.

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A guy band is used to stabilize the vent above the roof line or where a vent support can not be used. Secure with 4 guy wires (not included. Available for Single Wall or Double Wall Z-Vent.

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Used to adjust flue gas flow in positive or negative pressure vent systems. Comes win heavy duty locking 3/8" regulator set, extended shaft and motor platform. Removable outer jacket allow for use on double wall or single wall vent.

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This low resistance rain cap is designed to terminate a vertical stack and prevent the entrance of debris or rain into the vent. It also provides low resistance to flue gas flow.

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Z-DENS Polypropylene Venting System  

Z-DENS Single Wall Pipe. Available in 2-8"


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Z-DENS Adjustable Pipe. Available in 2" to 4" diameters.

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Z-DENS Elbow 45°. Available standard and UV. Available in 2" to 8" diameters.

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Z-DENS Elbow 87°. Available standard or UV. Available in 2"- 10".

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Z-DENS Condensate Drain. Available in 2" to 8" diameters.

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Z-DENS end screen. Available in 2" - 8" diameters.

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Z-DENS Horizontal Concentric Terminal. Available in 2"/4" and 4"/6" diameters.

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Z-DENS Vertical Concentric Terminal. Available in 2"/4", 3"/5" and 4"/6" diameters.

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Z-DENS Flat Flashing. Available in 2", 5" and 8" diameters.

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Z-DENS Adjustable Flashing (Small) 5° - 25°. Available in 2" and 4" diameters.

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Z-DENS Adjustable Flashing 25° - 45°. Available in 2", 4"and 8" diameters.

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Z-DENS Concentric Fixing Bracket/Support Clamp.

Available in 2" to 8" diameters.

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Z-DENS Wall Plate. Black EPDM. Available in 2" and 3" diameters.

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Z-DENS Replacement Gasket Rigid or Concentric - Black EPDM. Available in 2" to 8" diameters.

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Z-DENS Replacement Gasket Rigid or concentric - red/brown FKM (Viton®) . Available in 2", to 8" diameters.

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Z-DENS Flexible Kit - Chimney. Available in lengths of 25 ft and 35 ft. Available in 2" to 4" diameters.

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Z-DENS Flexible Extension Kit available in 10 ft. length. Available in 2" to 4" diameters.

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Z-DENS Flexible Chimney Liner Kit. Available in 2" to 4" diameters.

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Z-DENS Flexible Pipe. Available in lengths of 41ft (12.5 m) and 82ft (25m). Available in 2", 3" and 4".

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Z-DENS Flexible Spacer/Bracing Bracket. Available in 2" to 4" diameters.

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Z-DENS Flexible base kit. Available in 2" to 4" diameters.

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Z-DENS Flexible Base to Collinear - Ventilated Chimney Air (C9) Available in 2" and 3".

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Z-DENS Flexible Base to Concentric - Ventilated Chimney Air (C9x). Available in 2" and 3" diameters.

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Z-DENS Flexible Ceiling Plate. Available in 2" and 3".

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Z-DENS flexible ceiling plate to concentric. Available in 2" and 3" diameters.

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Z-DENS Flexible Ceiling Plate to Concentric Telescopic. Available in 2" and 3" diameters.

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Z-DENS Flexible Coupling. Available in 2" to 4" diameters.

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Z-DENS Flexible to Rigid (Male) Adaptor for chimney elbow. Available in 2" to 4" diameters.

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Z-DENS (Rigid) Female to Flexible Adaptor. Available in 2" to 4" diameters.

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Z-DENS Flexible Installation Tool. Available in 2" to 4" diameters.

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Z-DENS flexible gasket replacement red/brown FKM (Viton®). Available 2" to 4" diameters.

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Z-DENS chimney cover. Available in 5", 6" and 8".

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Z-DENS PPs Roof Termination, condensing. Available in 5" 6" and 8".

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Z-DENS PPs/Aluminum pipe available in: O2"/4"(60/100 mm), O3"/5"(80/125 mm)and O4"/6" (110/160mm).

Available in 12", 24" & 36" lengths.

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Z-DENS Concentric PPs/Alu adjustable pipe. Available in 2"/4", 3"/5", 4"/ 6" diameters.

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Z-DENS Concentric PPs/Alu test port. Available in 2"/4", 3"/5", 4"/ 6".

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Z-DENS Concentric PPs/Aluminum Elbow 45° 2"/4" 3"/5", 4"/6".

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Z-DENS Concentric PPs/Aluminum 87° Elbow. 2"/4". 3"/5". 4"/6".

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Z-DENS Concentric PPs/Alu condensation drain. Available in 2"/4", 3"/5", 4"/ 6".

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Z-DENS Termination Guard Horizontal. Available in 4" to 6" diameters.

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Z-DENS Concentric PPs/Galv wall terminal. Available in 2"/4", 3"/5", 4"/ 6".

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Z-DENS Concentric PPs/Galv roof terminal. Available in 2"/4", 3"/5", 4"/ 6".

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Z-DENS Concentric PPs/Galv extension roof terminal. Available in 2"/4" and 3"/5". Available in 20" and 40" lengths.

Guy Support included with 40" length.

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Z-DENS Concentric Fixing Bracket/Support. Clamp with rubber lining. 4" (100 mm).

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Z-DENS Concentric PPs/Alu T-piece. Available in 2"/4", 3"/5", 4"/ 6".

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Z-DENS Galvanized Wall Plate. White.  Available in 4", 5" and 6"  diameters.

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Flexmaster HVAC Systems  

A semi rigid and lightweight non-insulated air duct, Triple Lock (T/L) is manufactured by using a dead soft aluminum strip which is spirally wound and mechanically joined together forming an air tight and leakproof triple lock seam. A self supporting and corrosive resistant ULC-S110 and UL181 Class 1 product is produced which provides excellent strength and flexibility, adaptable to any low to high pressure heating, ventilation and air conditioning system.

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Triple Lock insulated aluminum flex duct with a polyethylene vapour barrier - Class 1 air duct/connector. T/L-T is manufactured by using a dead soft aluminum strip, spirally wound and mechanically joined together with an inner duct that is covered with a thick fiberglass insulation and a flame retardant, non-toxic polyethylene vapour barrier. This top rated UL-181 Class 1 product is an excellent insulated air duct for most energy efficient heating and cooling systems.

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A Triple Lock insulated aluminum flex duct with reinforced foil/mylar sleeve - Class 1 air duct/connector (T/L-M) is manufactured by using a dead soft aluminum strip, spirally wound and mechanically joined together. The inner duct is draped with thick fiberglass insulation and covered by a flame retardant, scrim foil mylar vapour barrier. This ULC-S110 and UL-181 Class 1 product integrates a Triple-Lock core with an insulated reinforced sleeve to produce an unbeatable thermal air duct which aids temperature uniformity, absorbs duct vibration and ensures low permeability.

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This insulated acoustic air duct, T/L-A-T/L is manufactured by using a dead soft aluminum strip which is perforated, spirally wound and mechanically joined together. The inner duct is covered with thick fiberglass insulation and sleeved by a triple-lock aluminum jacket.

T/L-A-T/L relies on the perforated core with an open area of 20-25% to create a duct with superb acoustic qualities. The complete high pressure duct assembly is excellent for those HVAC systems requiring low noise.

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Triple Lock-Acoustic (TL/A) is an insulated acoustic air duct, manufactured by using a dead soft aluminum strip which is perforated, spirally wound and mechanically joined together.

The inner duct is draped with a thick fiberglass insulation and covered by a flame retardant, non-toxic polyethylene vapour barrier.

This top-rated UL-181 Class 1 product uses a Triple Lock (T/L basic) perforated core with an open area of 20% to 25% to completely cushion sounds such as air movement and duct vibrations.

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This medical grade insulated acoustic air duct is manufactured using a dead soft perforated aluminum strip, spirally wound and mechanically joined together. The fiberglass blanket is totally isolated from the air stream by a seamless polyethylene liner, which is draped with thick fiberglass insulation and covered by a flame retardant, scrim foil mylar or polyethylene vapour barrier. Triple Lock® (T/L basic) perforated core with an open area of 20% to 25% to completely cushion sounds, such as air movement and duct vibrations. Ideal for use in medical care facilities and should allow for a comparatively noise free environment.

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Non-insulated Triple Lock® Stainless Steel is manufactured using a stainless steel strip which is spirally wound and mechanically joined together forming an air tight and leakproof triple lock seam. The ULC-S110 and UL-181 Class 1 product combines stainless steel construction with the superior features of Triple Lock® to produce a solid solution for venting extreme temperatures, harsh fumes or hazardous chemicals.

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This non-insulated flexible air duct, Fab 3, features a reinforced aluminized trilaminate spirally wound and mechanically locked together by a corrosive resistant galvanized steel helix.

This advanced tear resistant ULC-S110 and UL-181 Class 1 product is supported by the outside metal helix which with the resilient duct liner, provides the product integrity necessary to obtain the high pressure rating, both positive and negative, which is required by many engineered HVAC duct systems.

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A premium insulated flexible air duct, Fab 3M is made of a reinforced aluminized trilaminate spirally wound and mechanically locked toegther by a corrosive resistant galvanized steel helix. The core is wrapped with thick fiberglass insulation and sleeved by a flame retardant, scrim foil mylar vapour barrier. This high pressure ULC-S110 and UL-181 Class1 product exhibits the premium fabricated components esstential for most return air systems.

Note:

This ULC Class 1 product has a flame spread rating of not over 25 without evidence of continued progressive combustion and a smoke developed rating of not over 50.

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This reliable high-pressure insulated air duct, Fab 3T is made of a reinforced aluminized trilaminate spirally wound and mechanically locked together by a corrosive resistant galvanized steel helix. The core is wrapped with thick fiberglass insulation and sleeved by a flame retardant, non-toxic polyethylene vapour barrier. This high pressure UL-181 Class 1 product is excellent for most return air systems.

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This extremely, tough non-insulated flexible air duct, is produced with a heavy vinyl-coated fiberglass cloth which is mechanically locked together with a scuff protecting galvanized steel helix.

This impact resistant ULC-S110 and UL-181 Class 1 product is shaped by the outside helix which locks together the strong duct fabric. This construction combination supplies the strength necessary to obtain a complete air duct rating in a non-insulated form demanded in many high pressure air distribution networks.

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This remarkable high pressure insulated flexible duct, Fab 4T consists of a core made from vinyl coated fiberglass cloth which is mechanically locked together by a corrosive resistant galvanized steel helix. The liner is draped with thick fiberglass insulation and covered by a mylar sleeve.

The unsurpassed properties of this ULC-S110 and UL-181 Class 1 product combines the rugged puncture resistant fabric with a highly dependable insulated vapor barrier to create a superior high pressure thermal duct ideal for commercial or institutional HVAC use.

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This high pressure insulated flexible duct, consists of a core made from vinyl coated fiberglass cloth which is mechanically locked together by a corrosive resistant galvanized steel helix. The liner is draped with thick fiberglass insulation and covered by a flame retardant, non toxic polyethylene vapor barrier.

The properties of this UL-181 Class 1 product combines the rugged puncture resistant fabric with a highly dependable insulated vapor barrier to create a superior high pressure thermal duct ideal for commercial or institutional HVAC use.

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A quality non-insulated flexible air duct of reinforced aluminized trilaminate which is mechanically locked together by a corrosive resistant galvanized steel helix.

A ULC-S110 and UL-181 Class 1 product, formed by the protective outside helix which interlocks with the smooth and reinforced line to produce an exceptional low to medium pressure duct often required by VAV commercially deigned air conditioning and heating applications.

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This insulated flexible air duct consists of a reinforced aluminized trilaminate which is mechanically locked together by a corrosive resistant galvanized steel helix. The core is covered with thick fiberglass insulation and a mylar sleeve. This ULC-S110 and UL-181 Class 1 product combines the reinforced liner with thermal attributes to produce a duct assembly ideal for energy efficient HVAC installations.

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An insulated, reinforced aluminized trilaminate flexible air duct; mechanically locked together by a corrosive resistant galvanized steel helix. The core is covered with GREENGUARD certified JM Formaldehyde-free™ thick fiberglass insulation, and sleeved by a flame retardant non toxic polyethylene vapor barrier. This UL-181 Class 1 Product, combined with a reinforced liner and thermal features, produce a duct assembly ideal for energy efficient HVAC installations.

Suggested Specification
Flexible duct shall be Fabriflex Type 5T by Flexmaster. It will be constructed of a reinforced aluminized trilaminate which is mechanically bonded to a corrosive resistant outside metal helix. The core will be factory wrapped with  GREENGUARD certified JM Formaldehyde-free™ thick fiberglass insulation and covered by a flame retardant, non-toxic polyethylene vapour barrier. Flexible insulated duct connections will be listed in accordance with UL-181 and classified as Class 1. For increased protection against punctures and overall duct strength, also available with mylar vapor barrier sleeve Fab™ 5M.

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This acoustically rated flexible air duct consists of a spun bond nylon, non woven core mechanically bonded to a scuff resistant galvanized steel helix without the use of adhesives. This low pressure UL 181Class 1 product has excellent broadband acoustic properties ideally suited for lowering dB levels.

Also available with mylar barrier (Fab 6M version)

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This acoustically rated flexible air duct consists of a spun bond nylon, non woven core mechanically bonded to a scuff resistant galvanized steel helix without the use of adhesives. This low pressure UL 181 Class 1 product has excellent broadband acoustic properties ideally suited for lowering dB levels.

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This acoustical insulated flexible air duct is assembled using a CPE core which is mechanically locked together by a corrosive resistant galvanized steel helix.

The core is wrapped with thick fiberglass insulation and covered by a scrim foil mylar sleeve.

This quality product is protected by the outside reinforced metalized vapour barrier which improves puncture resistance overall duct strength; producing a viable solution for most heating, ventilating and air conditioning systems.

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This acoustical insulated flexible air duct is assembled using a CPE core which is mechanically locked together by a corrosive resistant galvanized steel helix. UL-181 Class 1.

The core is wrapped with thick fiberglass insulation and covered by a flame retardant, non toxic polyethylene vapour barrier. This duct is an excellent solution for most heating, ventilating and air conditioning systems.

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FumeVent Lab Smart Laboratory Exhaust System Featuring factory expanded pipe and fitting ends. Fusion welded pipe seams. Fully welded fittings 4" through 24" diameters. Constructed from: 20 GA Stainless Steel 304L/316L Stainless Steel Benefits: Air and watertight seams. Meets SMACNA's RT-6 Standard. Field labour savings. Lab-Smart design. Cut to length on site. Directional exhaust flow. Self supporting connections. Applications: Anaesthetic gas scavenging systems; Hot lab exhaust; Bio-safety cabinets; Car wash exhaust.

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Unique lock-formed seam and consistent calibrated tolerances combine to product a superior quality product in a wide range of gauges to SMACNA standards. Spiral duct is available in galvanzied, aluminum and 304/316 stainless steel in diameters ranging from 3" to 60". Standard length - 10ft.

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45° Elbow - Spot Welded and Sealed

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Seams are continuously stitch welded, air tight.

Available in 1 x CLR and 1.5 x CLR

Materials: galvanized steel, satin coat (paint applications), stainless steel.

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Assembly comes complete with quality regulator and retractable spring bearing hardware. Available in diameters ranging from 4" to 12" with or without damper. Save approximately 43% on installation time over conventional fish-lock collars.

1SO1801 - No Damper
1SO1802 - With Damper

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Diameters range for 6" to 20" with or without damper. 24 gauge construction. Complete with quality regulator and retractable spring bearing hardware. Designed for use with spiral duct.

1SO1803 - No Damper
1SO1804 - With Damper

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Complete with 8" body, 1/4" square rod, locking quadrant, heavy duty handle, 1" standoff regulator with damper. Available in diameters from 6" to 20" . Blades are specially designed for optimum linear balancing. Recommended for insulated ductwork.

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Conicals average 36% less static pressure (SP) drop and 45% less total pressure (TP) drop than conventional spin-on collars. Superior quality and design. Assembly comes complete with quality regulator and retractable spring bearing hardware.

Available in diameters ranging from 4" to 16" with or without damper.

1SO1701 - No Damper
1SO1702 - With Damper

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Sealed Branch Connectors
Flexmaster® Series 2000/2001
Seal-On Connectors manufactured from 26 gauge or heavier galvanized steel. 
Meets ANSI/SMACNA Duct Construction Standards

Standard Construction
26-gauge Galvanized Steel Body
26-gauge Galvanized Steel Damper
1" formed flange with pressure sensitive polyethylene high density adhesive gasket provides air tight connection
Available in sizes from 4" to 16"

Optional Construction
24 ga. 22 ga. or 20 ga. aluminum or stainless steel.  

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Constant tension clamps come with a 5/16" hex slotted head and 1/2" wide stainless steel band. Fully adjustable and ideal for making flexible duct connections in diameters ranging from 2" to 24". Offer maximum strength and anti-shear protection. Not recommended for underground applications.

The life of all fabric ducts can be greatly extended when sized correctly according to equipment exhaust requirements. Novaflex offers a complete line of fittings and accessories for use in exhaust systems. Where exhaust fume leakage is of concern, a negative pressure fan system should be incorporated. Please consult a Novaflex factory salesperson for correct sizing for diesel, caustic or high velocity exhaust applications. This will also aid  in reducing exhaust temperatures and static pressures.

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Stainless steel bridge clamps, in comparison to traditional band clamps provide a superior seal for both interior and exterior helix ducting. The flat band clamps snugly around the material between the raised helix, assuring a tight seal at the venting connection.

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Nylon clamps are fast, easy and economical. Available in various lengths from 24" to 48" to fit up to 14" diameter duct. Loop tensile strength to 175 lbs.

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Ductbond is a high velocity duct sealant, tested to ASTM G-21, with a rating = 0 (no fungal growth on surface).
Water based for personal and environmental safety. Resistant to fire, oxidation, cracking, moisture and water. Creates a permanent flexible seal and is suitable for high, medium or low pressure applications. Ductbond is a neutral metallic grey colour and is quick and easy to clean-up. Quality non-flammable water based, high velocity duct sealant seals joints and openings in galvanized steel, aluminum, and other metal ductwork. Sets up quickly and forms a strong, permanently flexible, air-tight seal. Brush grade grey metallic, emulsion based duct sealant is easily applied and suitable for all high, medium and low pressure air handling systems.

This UL listed duct sealant is tested to ASTM E84 and meets NFPA 90A and 90B 25/50 requirements. UV rated, fire resistant, water based, non toxic VOC rated and inhibits mold and mildew growth.

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Duct tape - manufactured by Nashua. Available in 2" and 3" widths.

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Foil tape - manufactured by Nashua. Available in 2" and 3" widths.

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Factory assembled fiberglass inner lining with polyethylene vapour barrier. Standard 1" insulating blanket offers an R-value of 4.2. Meets guidelines for anti-bacterial and anti-moisture.

Available in diameters ranging from 2" to 24". ULC Classified as a Registered Component. (RC)

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Factory assembled fiberglass inner lining with a Mylar vapor barrier. Standard 1" insulating blanket offers R-value of 4.2. Meets guidelines for anti-bacterial and anti-moisture.

Available in diameters ranging from 2" to 24". ULC Classified as a Registered Component. (RC)

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Z-Flex® Chimney Liner Kits and Accessories - All Fuels  

Z-Flex® Triple Lock® stainless steel chimney liner kits come complete with everything you need to quickly and easily install.

Available in 3", 4", 5", 5.5", 6", 7", 8", 9", 10".  Larger sizes available upon request. Alloy 316 Titanium.
Patented airtight Triple Lock® construction is tested and listed by UL.
UL 1777 and ULC S635 Listed for use with wood, pellet, oil, natural gas and propane fired appliances.

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Z-flex is engineered to quickly conduct heat, assisting in a natural draft system.

Available in 3", 4", 5", 5.5", 6", 7", 8", 9", 10" diameters.
Kit must be insulated for wood burning applications. (US Only).
Larger diameters available upon request. Kit includes a limited lifetime warranty. UL 1777 and ULC S635 Listed for use with wood, pellet, oil, natural gas and propane fired appliances.

All Fuel Kit Includes:
Triple Lock® Stainless Steel Liner
Z-Max® Rain Cap & Flashing
Z-LOK Tee

For Use with Natural Draft Appliances.
Not intended for use with Category II, III, or IV gas burning appliances as defined by the National Fuel Gas Code, NFPA 54, or other appliances that result in condensation or corrosive acids on the liner of the chimney, or that create positive pressures in the chimney system.

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Z-Flex® Triple Lock® Stainless Steel Chimney Liner Kit

Everything you need to get the job done right! Z-Flex® Stainless Steel Chimney Liner Kits come complete with everything you need to quickly and easily install a professional venting system.
Manufactured from special high temperature and acid resistant stainless steel exclusive to Z-Flex®, and designed with 'deep corrugations' to provide for greater flexibility and ease of installation. The result is a clearly superior product, offering incredible longevity.
UL 1777 and ULC S635 Listed for use with wood, pellet, oil, natural gas and propane fired appliances.

Pellet, Oil & Gas Kit includes:
Triple Lock® Stainless Steel Liner
Z-Max® Rain Cap & Flashing
Stove Adaptor

For Use with Natural Draft Appliances.
Not intended for use with Category II, III, or IV gas burning appliances as defined by the National Fuel Gas Code, NFPA 54, or other appliances that result in condensation or corrosive acids on the liner of the chimney, or that create positive pressures in the chimney system.

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Triple-Lock® Smoothcore All Fuels Chimney Liner
Eliminates the turbulence that's inherent with corrugated liners, improving draft
Resists corrosive attack by not impeding the flow of condensate down the liner, with therefore, less opportunity for soot to accumulate
Patented Triple-Lock® design won't pull apart during installation, or under extreme heat conditions.

Proprietary 316T1 Plus Titanium stainless steel ensures indefinite service lift and safety in containing creosote fires.
UL 1777 and ULC S635 Listed for use with wood, pellet, oil, natural gas and propane fired appliances.

Z-Flex® Smoothcore Kit
This kit includes:
Triple Lock® Stainless Steel Smoothcore Liner
Z-Max® Rain Cap & Flashing
Z-LOK Tee

For Use with Natural Draft Appliances.
Not intended for use with Category II, III, or IV gas burning appliances as defined by the National Fuel Gas Code, NFPA 54, or other appliances that result in condensation or corrosive acids on the liner of the chimney, or that create positive pressures in the chimney system.

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Everything you need to get the job done right! Z-Flex® Triple Lock® Stainless Steel Chimney Liner Kits come complete with everything you need to quickly and easily install a professional venting system. Manufactured from special high temperature and acid resistant stainless steel exclusive to Z-Flex®, and designed with 'deep corrugations' to provide for greater flexibility and ease of installation. The result is a clearly superior product, offering incredible longevity. UL 1777 and ULC S635 Listed for use with wood, pellet, oil, natural gas and propane fired appliances.

All Fuel Universal Kit includes:
Triple Lock® 
Stainless Steel Liner
Chimney Flashing
Rain Cap
Dripless Connector
Rigid Stacking Tee

Available in diameters 3" to 24"

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Z-Flex® Triple Lock® Stainless Steel Chimney Liner Kits come complete with everything you need to quickly and easily install a professional venting system.
Manufactured from special high temperature and acid resistant stainless steel exclusive to Z-Flex® and designed with 'deep corrugations' to provide for greater flexibility and ease of installation. The result is a clearly superior product, offering incredible longevity. UL 1777 and ULC S635 Listed for use with wood, pellet, oil, natural gas and propane fired appliances. 

Z-Flex® Pellet Kit
Kit includes:
Triple Lock® Stainless Steel Liner
Z-Max® Rain Cap & Flashing
Pellet Tee

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2" Fresh Air Kit for Pellet Stoves. Kit includes:
1 - 2" x 5" Aluminum 1 ply duct
1 - 2" intake hood w/screen
2 - 2" gear clamps

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4" Fresh Air Kit for Pellet Stoves. Kit includes:
1 - 4" x 5" Aluminum 1 ply duct
1 - 4" intake hood w/screen
2 - 4" gear clamps

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Patented airtight Triple Lock® construction. Available in lengths to 50ft in 5 foot increments. Available in 3" through 24" diameters. 

UL 1777 and ULC S635 Listed for use with wood, pellet, oil, natural gas and propane fired appliances.

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Lengths: 5 ft to 20 ft.

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Lengths up to 50 ft or multiples of 5 ft.

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Connects Z-Flex to insert or rigid liner. Flex ready connection. Fully welded construction.

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Connects Z-Flex to insert or rigid liner. Flex ready connection. Fully welded construction.

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Adapts Base Tee branch to stove pipe. Large end/Large end.

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Used to connect Z-Flex Liner to inserts. Designed with a low profile in order to accommodate confined spaces. Mounting tabs allow Liner connection from inside the insert. Grab handle can be used as a guide cone and makes it easy to pull the connector and Liner into position. Also available in 30° and 45° offsets.

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Ideal for use as cleanout tee with most pellet stoves. Branch sized to fit over flue outlet collar.

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Flex ready tee with gear clamp assembly.

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Used to extend the distance from chimney top Flashing and Rain Cap from 4" to 12" diameters. 

Part Number 2ZMEXT(04, 05, 06, 07, 08, 09, 10, 12) for 18" long extension.

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Connects Z-Flex® with fireplace insert.
Flex ready on one end, unique fastening tabs allow for secure connection to insert.

Can also be used as a flex puller installation tool.

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Used to connect Z-Flex Stainless Steel flexible liner to insert, Rigid Stacking Tee or Elbow. Available in 3" through 24" diameters. Designed to keep creosote/ condensate within the liner space.

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Stainless Steel Dripless double wall connector. Used to connect Z-Flex liner to insert, base tee or other liner component.

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Stainless steel insert boot used to connect SS Flex Liner to Insert. Offset is adjustable.

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Exclusive Z-LOK™ Tee
For Secure Connections in Restricted Work Spaces
Z-LOK™ Tee body is specifically manufactured with a low profile mount that allows insertion right into tight chimney spaces.
Horizontal connection of Tee branch to Tee body incorporates the Z-LOK™ technology.
A tool-less mount system that secures with a minimal 20° rotation into the Z-LOK™ position.

For use with Z-Flex® Triple Lock® Liners"

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Z-Max® Rain Cap Part No.2ZMRCS_ _
Z-Max Flashing Part No.2AFCS _ _  with 13" x 13" base
Z-Max Flashing Part No.2AFCX _ _  with 18" x 18" base

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Available in 3"-10" diameters, larger sizes available upon request. Spark arrestor meets all National code requirements.

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Used to cover chimney top opening. Flashing is used to seal off the top of the chimney after liner installation is complete.

Available in 3" through 24" diameters. Base measures 16" x 16".

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Used to snake flexible chimney liner down chimney. Tapered design self centers liner for smoother installation.

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High temp ceramic fiber insulating blanket, with flex weave jacket, and gear clamps.

Available in 2", 3", 4", 5", 6", 7", 8", 10" diameters. Offered in 5 ft, 10ft, and 25ft lengths.  Mandatory for wood burning applications.

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Stainless steel Self-drilling screws.

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There is a built in storm collar to prevent rain or snow from entering the chimney. Available in 3" through 24" diameters.

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Z-Flex® Chimney Liner Kits - Gas, Aluminum  

UL listed aluminum chimney liner kit for use with Category I natural draft gas fired heating equipment and gas fireplaces.

For Use with Natural Draft Appliances.
Not intended for use with Category II, III, or IV gas burning appliances as defined by the National Fuel Gas Code, NFPA 54, or other appliances that result in condensation or corrosive acids on the liner of the chimney, or that create positive pressures in the chimney system.

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UL listed aluminum chimney liner kit for category I gas fired heating equipment and gas fireplaces.

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Insul-liner is insulated at the factory and protected with an outer aluminum jacket. This eliminates the time needed to insulate on the job site and prevents damage to the insulation during installation.

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Insul-liner takes the guess work out of insulating. No wrapping - liner is insulated at the factory. Simply remove from the box and install.

For Use with Natural Draft Appliances.
Not intended for use with Category II, III, or IV gas burning appliances as defined by the National Fuel Gas Code, NFPA 54, or other appliances that result in condensation or corrosive acids on the liner of the chimney, or that create positive pressures in the chimney system.

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1 ply aluminum fresh air intake duct. Not for venting flue gases.

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Additional Length Aluminum 2-ply Liner

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Use to adapt Insul-Vent to Z-Flex Liner or most brands of B-Vent

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Use to adapt Z-Flex Gas Liner to type B Gas Vent

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Use to connect lengths of Z-Flex aluminum Liner

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Used to connect two vent connectors to one common vent

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Used to connect two vent connectors to one common vent

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Z-Flex® Chimney Liner System - All Fuels, Oval  

Oval Liner Systems - All Fuels Applications

Kit includes:
1 - 25ft Oval Section
Oval Raincap
Oval Flashing
Oval Dripless Connector
5ft and 10ft oval sections available.
Dripless connector required to join oval sections.


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Available in 5ft sections. (1ft round 4ft oval) NOTE:To be used in the areas that are restrictive in one dimension. Diameters 6",7",8" and 10".

6" - 4" x 7.5" Oval
7" - 4" x 9"    Oval
8" - 4.5" x 10.5" Oval
10" - 5" x 14" Oval

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6"--4"x7.5" Oval 7"--4"x9" Oval 8"--4.5"x10.5" Oval 10"--5"x14" Oval.

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Oval Raincap with Spark Arrestor
Diameters: 6". 7", 8, 10"

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Flat Flashing Oval 6"  18 x 18
Diameters: 6", 7", 8", 10".

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NOTE: Oval coupling must be used to connect base tee to liner.

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Oval end accepts flex. Available in 6",7",8",and 10" diameters.

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Round end accepts flex. Available in 6",7",8"and 10" diameters

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Used to connect oval liner to oval liner or oval part. 

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Z-Flex® Stainless Steel Rigid Liner & Access  

This liner is designed for all fuel,it has a new fusion welded pipe seam for smoother finish & better fit. (Insulation required for wood burning applications).

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Available in 3"-10" diameters, larger sizes available upon request. Spark arrestor meets all National code requirements.

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There is a built in storm collar to prevent rain or snow from entering the chimney. Available in 3" through 24" diameters.

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Available in 4"-3", 5"-4", 6"-5", 7"-6", 8"-6", 8"-7", 10"-8. Used to reduce the liner size to accommodate a range of flue sizes, appliances and installations.

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Available diameters 3"-4", 4"-5", 5"-6", 6"-7", 6"-8", 7"-8", 8"-10".  Used to increase the liner size to accommodate a range of flue sizes, appliances and installations.

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Adapts Base Tee branch to stove pipe. Large end/Large end.

Part No.: 2ZRBTA Dia.:____ Dia.: 4" – 8"

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Tees have removable clean-out caps and removable long nose spout. Available in 3" through 24" diameters. NOTE: 3" and 10"-24" nose spouts are not removable.

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Used when a directional change is required, Angle can be adjusted.

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Used when a directional change is required, Angle can be adjusted.

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Used to cover chimney top opening. Flashing is used to seal off the top of the chimney after liner installation is complete.

Available in 3" through 24" diameters. Base measures 16" x 16".

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Z-Flex® Aerocowl Flue Stabilizer  

An aerodynamically designed unit, when fitted to structurally sound chimneys and flues, completely eliminates downdraft and thereby prevents troublesome smoke and toxic fumes which otherwise linger in the home. Available in 12" and 18". Universal or round base sold separately.

For Use with Natural Draft Appliances
Not intended for use with Category II, III, or IV gas burning appliances as defined by the National Fuel Gas Code, NFPA 54, or other appliances that result in condensation or corrosive acids on the liner of the chimney, or that create positive pressured in the chimney system.

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Rated 5 based on 1 product reviews
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 4", 5", 6" round base for use with 12" Aerocowl. 
7", 8", 10" round base for use with 18" Aerocowl.

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Rated 5 based on 1 product reviews
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12" diameter Aerocowl with universal base will fit 5"x5",6"x6" square tiles. 18" diameter Aerocowl with universal base will fit 7"x7",8"x8",8"x12",12"x12" tiles.

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Rated 5 based on 1 product reviews
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Z-Flex® Direct Vent Gas  

Model DVI-D Direct Vent Co-Linear Flexible Liner Kit with decorative cap/flashing

Kit includes:
35' Chimney Liners (3" or 4" Exhaust and 3" intake)
Decorative Cap/Flashing
Self-Tapping Screws

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Rated 5 based on 1 product reviews
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Model DVI-X Direct Vent Co-Linear Flexible Liner Kit

Kit includes:
35' Chimney Liners (3" or 4" Exhaust and 3" intake)
Extreme Weather Cap/Flashing
Self-tapping Screws

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Rated 5 based on 1 product reviews
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Model DVK-HT Direct Vent Co-Axial Flexible Liner Kit with Horizontal SQUARE Termination

Kit Includes:
Co-Axial Flexible Vent
Spacers & Supports
Horizontal SQUARE Termination
Self-Drilling Screws

Available diameters (vent/intake): 3"/5", 3"/6", 4"/6", 4"/7", 4.5"/7.5", 5"/7", 5"/8", 6"/8", 7"/10", 8"/11"
Available lengths: 5', 10', 20', 40'

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Rated 5 based on 1 product reviews
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Model DVK-HR Direct Vent Co-Axial Flexible Liner Kit with Horizontal ROUND Termination

Kit Includes:
Co-Axial Flexible Vent
Spacers & Supports
Self-Drilling Screws

Available diameters (vent/intake): 3"/5", 3"/6", 4"/6", 4"/7", 4.5"/7.5", 5"/7", 5"/8", 6"/8", 7"/10", 8"/11"
Available lengths: 5', 10', 20', 40'

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Rated 5 based on 1 product reviews
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Model DVK-VX Direct Vent Co-Axial Flexible Liner Kit with Extreme Weather Cap

Kit Includes:
Co-Axial Flexible Vent
Spacers & Supports
Fire Stop/Insulation Shield
Insulation Collar
Rigid Pipe with Roof Support
Flashing for 0° to 30° Pitched Roof
Storm Collar/Support
Self-Drilling Screws

Available diameters (vent/intake): 3"/5", 3"/6", 4"/6", 4"/7", 4.5"/7.5", 5"/7", 5"/8", 6"/8", 7"/10", 8"/11"
Available lengths: 5', 10', 20', 40'

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Rated 5 based on 1 product reviews
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Z-Vent Appliance Adaptors  

Adapts Z-Vent to Safety Vent co-axial vent termination


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Rated 5 based on 1 product reviews
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Universal appliance adapter with back-flow preventer and condensation drain.

Adapts Z-Vent to Laars, Bosch, Nortec, Takagi, Paloma, Rheem, Modine and Reznor flue outlets.  Adapter incorporates a back-flow preventer and condensation drain with 3/8" nipple.


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Rated 5 based on 1 product reviews
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Use to adapt appliance vent outlet to Z-Vent.

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Adapts Z-Vent to a Bosch 425 EF/125FX tankless water heater.

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Rated 5 based on 1 product reviews
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Use to adapt appliance vent outlet to Z-Vent

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Rated 5 based on 1 product reviews
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Use to adapt appliance vent outlet to Z-Vent

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Rated 5 based on 1 product reviews
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Lochinvar Flue Connector JKB 2000

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Rated 5 based on 1 product reviews
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Lochinvar Adapter JKB2000 Available in 3" and 4"

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Rated 5 based on 1 product reviews
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use to adapt appliance vent outlet to Z-Vent

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Rated 5 based on 1 product reviews
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Adapts Z-Vent to Bosch and Noritz Tankless water heater flue outlet. Available in 3", 4" and 5" diameters.

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Rated 5 based on 1 product reviews
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Use to adapt appliance vent outlet to Z-Vent

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Rated 5 based on 1 product reviews
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Transitions appliances with 3" Saf-T vent flue outlets to Z-Vent pipe

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Adapts Z-Vent to Slant Fin Victory, Concept and VSPH flue outlet.

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Rated 5 based on 1 product reviews
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Use to adapt appliance vent outlet to Z-Vent

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Use to adapt appliance vent outlet to Z-Vent

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Rated 5 based on 1 product reviews
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Use to adapt appliance vent outlet to Z-Vent

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Rated 5 based on 1 product reviews
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Triangle tube prestige solo adapter
110 - 3.5" 3" Z-Vent
175 - 3.5" 3" Z-Vent
250 - 4.5" 4" Z-Vent

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Rated 5 based on 1 product reviews
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Use to adapt appliance vent outlet to Z-Vent

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Rated 5 based on 1 product reviews
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Adapts Z-Vent to a Viessman Vitodens 200 boiler.

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Rated 5 based on 1 product reviews
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