DuraVent DuraVent 3" Inner Diameter - Type B Round Gas Vent Pipe - Double Wall - 3" to 4" R/R Adapter

Round Gas Vent Collection Aluminum R/R Double-Wall Adapter 3 Inch-4 Inch with 3 Inch Inner DiameterThis Aluminum R/R Double-Wall Adapter 3 Inch-4 Inch with 3 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: 3", 4"Increase Vent Diameter Directly on Top of ApplianceIncrease Vent Diameter Directly on Top of...