B Vent Increasers

Metal-Fab Type-B Gas Vent products are tested and listed to UL 441 for approved gas appliances and feature our innovative twist-lock connection and locking tab, eliminating the need for sheet metal screws. Metal-Fab Type B Gas Vent combines hemmed flues and casings that maximize product durability and reliability and minimize installation time. Designed for versatility, Metal-Fab Type-B Gas Vent products 3"-6" adapt to major competing brands and when installed establish a UL Listed connection.
Part # Item Name Availability Add To Cart
075-0560 3MIX5 3 X 5 VENT INCREASER

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075-0655 3MIX6 3 X 6 VENT INCREASER

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075-0656 4MIX6 4 X 6 VENT INCREASER

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075-0740 4MIX7 4 X 7 VENT INCREASER

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075-0741 5MIX7 5 X 7 VENT INCREASER

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075-0742 6MIX7 6 X 7 VENT INCREASER

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075-0840 5MIX8 5 X 8 VENT INCREASER

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075-0841 6MIX8 6 X 8 VENT INCREASER

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075-0842 7MIX8 7 X 8 VENT INCREASER

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075-1045 6MIX10 6 X 10 VENT INCREASER

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075-1047 8MIX10 8 X 10 VENT INCREASER

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075-1240 8MIX12 8 X 12 VENT INCREASER

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075-1241 10MIX12 10 X 12 VENT INCREASER

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075-1435 12MIX14 12 X 14 VENT INCREASER

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