Marathon Roofing Products Inc.
Marathon Roofing Products Inc.
Roof Drains, Vents, Accessories and Pedestal Supports
3310 Benzing Rd.
Orchard Park, NY 14127-1538
Toll Free: 800-828-8424
Phone: 716-332-7673
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Marathon Roofing Products Inc. > PRODUCT > RD-300 Extra Large Body

RD-300 epoxy coated cast iron roof drain with flashing clamp with integral gravel stop, self-locking polyethylene dome (standard), and no hub (standard) outlet. Constructed to withstand climate and the rigors of long-term use.


  • Engineered with cast iron for long life and durability
  • Self-locking polyethylene dome (standard) and no hub (standard) outlet simplify installation and maintenance
  • Flashing clamps with integral gravel guards help ensure reliable high volume drainage


  • Sump receiver
  • Underdeck clamp
  • Deck flange/adjustable extension
  • Aluminum strainer
  • Cast iron strainer
  • Vandal proof strainer
  • 2" external water dam
  • Available in 3", 4", 6", 8" and 10"

RD-300 Extra Large Body Data Sheet

Direct Connect Product Brochure

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