Selkirk 3"/4"/5" Double Wall Increaser (Round - Type B Gas Vent) Size:3" to 4" Media kit: Glass Embers -

Media kit: Glass Embers - Blue

Instant Ambiance: Arrange driftwood and rocks in any pattern for a custom look

Burner Included BI737 BTUs (LP/NG) 80K Weight 220 lbs Fire Media 30 lbs Warranty

Sizing Chart for Spacers 36" Heights QTY 42" Heights QTY S1 1/2" 1 S1 1/2" 1 S2 9/16" Ea

Selkirk 3"/4"/5" Double Wall Increaser (Round - Type B Gas Vent) Size:3" to 4" Media kit: Glass Embers -Selkirk 3" 4" 5" Double Wall Increaser (Model RV Type B Gas Vent) Used to increase pipe diameter. (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 Expandable Flex Connectors.