,Description##Other##,Flue Depth##Length##Inches,Flue Width##Length##Inches,Effective Flue Area##Area##inches
4-1/2 x 8-1/2,4-1/2 x 8-1/2 Rectangular Clay Flue Liner,4.5,8.5,23
4-1/2 x 13,4-1/2 x 13 Rectangular Clay Flue Liner,4.5,13,34
8 x 8,8 x 8 Rectangular Clay Flue Liner,8,8,42
8-1/2 x 8-1/2,8-1/2 x 8-1/2 Rectangular Clay Flue Liner,8.5,8.5,49
8 x 12,8 x 12 Rectangular Clay Flue Liner,8,12,67
8-1/2 x 13,8-1/2 x 13 Rectangular Clay Flue Liner,8.5,13,76
8-1/2 x 18,8-1/2 x 18 Rectangular Clay Flue Liner,8.5,18,102
12 x 12,12 x 12 Rectangular Clay Flue Liner,12,12,102
12 x 16,12 x 16 Rectangular Clay Flue Liner,12,16,131
13 x 13,13 x 13 Rectangular Clay Flue Liner,13,13,127
13 x 18,13 x 18 Rectangular Clay Flue Liner,13,18,173
16 x 16,16 x 16 Rectangular Clay Flue Liner,16,16,181
16 x 20,16 x 20 Rectangular Clay Flue Liner,16,20,222
18 x 18,18 x 18 Rectangular Clay Flue Liner,18,18,233
20 x 20,20 x 20 Rectangular Clay Flue Liner,20,20,298
20 x 24,20 x 24 Rectangular Clay Flue Liner,20,24,335
24 x 24,24 x 24 Rectangular Clay Flue Liner,24,24,431