Selkirk 3" to 7" Low Profile Double Wall Increaser (Round - Type B Gas Vent) Size:4" to 6" Click to see Optional Surround

Click to see Optional Surround Add a designer touch to your room with a beautifully finished Dark Grey or Bronze colored surround for your fireplace

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The chimney tee may be used to support the chimney indoors or outdoors on the non-combustible wall support or a masonry pier

or set lighting output to any level

Selkirk 3" to 7" Low Profile Double Wall Increaser (Round - Type B Gas Vent) Size:4" to 6" Click to see Optional SurroundSelkirk 3" to 7" Low Profile Double Wall Increaser Used to increase pipe diamete. Used for tight installations to optimize space. (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