Show: All Categories6 Inch Diameter6" Inch Diameter6"CHIMNEY PIPE7 Inch Diameter8 Inch Diameter8" CHIMNEY PIPE8" Inch DiameterGas / Direct Vent (4" x 6-5/8")Gas / Direct Vent (5" x 8")Pellet & Corn PipeUNIVERSAL BRACKETS & SUPPORTS