3" x 6" Type B Gas Vent Low Profile Double Wall Increaser from the RV CollectionThis gas vent increaser allows you to adapt 3" diameter pipe to 6" diameter pipe when required for your application.The RV series offers round gas vent pipe and fittings for residential, commercial and industrial applications. It features a snap together, non-positional lock system, die formed ends, and eliminates the need for all cutting, fitting and special engineering. It has an improved joint design provides for a rapid and secure connection in seconds. The use of our "LockTab" feature gives installers the option of engaging this tab instead of using sheet metal screws, when required by local code.Features:Residential and light commercial and industrialMaterials: Galvanized steel outer and aluminum inner linerEasy to use LockTab or non-positional lock systemFuel: GasUL 441 listedMinimum Safety Clearance to Combustibles:1" for diameters of 3" to 24"2" for diameters 26" to 48"Warranty: Lifetime Limited Wa
