DuraVent 4 in. Dia x 48 in. L Double Wall Connector

Type B Gas Vent designed to the demands of the common category I appliance installation. Engineered to heat up rapidly and remain hot during the appliance operation to allow for minimal condensation. An innovative system for a lock tight connection called DuraLock.|Use with natural gas and liquified propane (LP) category I appliances with a draft hood|Gives 4 in. b-vent run flexibility to bend around an obstruction like a stud and maintain 1 in. clearance|Has 48 in. L to allow multiple bends|Eliminates the need for b-vent to more easily connect an appliance to the b-vent wye or tee in the mechanical room