DuraVent DuraVent 4" Inner Diameter - Type B Round Gas Vent Pipe - Double Wall - 4" to 5" R/R Adapter

Round Gas Vent Collection Aluminum R/R Double-Wall Adapter 4 Inch - 5 Inch with 4 Inch Inner DiameterThis Aluminum R/R Double-Wall Adapter 4 Inch - 5 Inch with 4 Inch Inner Diameter from the Round Gas Vent series is a Type B gas component and consists of the duralock system for a tight seal. Use to increase the vent diameter directly on top of the appliance.Features:Fuel Type: Gas, Liquid PropaneInner Diameter: 4", 5"Increase Vent Diameter Directly on Top of ApplianceDouble Wall ConstructionUL ListedDura...