Selkirk 3" to 4" Appliance Increaser (Round - Type B Gas Vent) manual-3-heat-setting-white All five pieces are made

All five pieces are made from solid stock and have traditional ball handles for a good grip

modern look for your fireplace or woodstove

Chimney pipe must be centered within Close Clearance Shield

you’ll enjoy the elegant steel design with wood grain mantle

a quad-mantle gas lamp or GasGlow® LED would produce light equivalent to about two 100-watt incandescent bulbs

Selkirk 3" to 4" Appliance Increaser (Round - Type B Gas Vent) manual-3-heat-setting-white All five pieces are madeSelkirk 3" to 4" Appliance Increaser 103244 (3RV AI4) Increase 3" to 4" only. Only for use with Rheem Rudd appliances. (RV) Round Type B Gas Vent Model RV Double Wall Gas Vent is the installer's choice for residential, industrial and light commercial applications. The aluminum liner heats up quickly to promote strong draft. Galvanized outer provides protection against outdoor elements. Product line includes DWC Double Wall Connectors and EFC