5" X 24" B-VENT SINGLEWALL GAS CONNECTOR, SINGLEWALL FLEXIBLE CONSTRUCTION, INCLUDES AN INTEGRAL APPLIANCE DRAFT HOOD CONNECTOR FOR FAST INSTALLATION, LOCKS ONTO HART & COOLEY GAS B-VENT, REQUIRES 1" CLEARANCE TO COMBUSTIBLES PER INSTALLATION INSTRUCTIONS, UL LISTED AS A CONNECTION FROM AN APPLIANCE TO TYPE B GAS VENT IN CONDITIONED SPACES ONLY, DO NOT ENCLOSE, DIMS:5" X 5" DIAMETER X 24"L, WEIGHT:2 LBS, IN MFG BOX, MADE IN USA.