3" B-VENT DOUBLE WALL 2' LENGTH

FLEXIBLE, DOUBLE WALL, B-VENT. DIMS 3" X 3" X 24". 1LBS. BRAND: METAL FAB 

 

INSTALL AT ONE INCH CLEARANCE TO COMBUSTIBLES. TO BE USED WITH CATEGORY I GAS FIRED APPLIANCES THAT NORMALLY PRODUCE FLUE GAS