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Home > Sheet Metal & Duct > Gas Chimneys Pipe & Accs > B-Vent Increaser 4" x 6" Natural Gas Aluminum Inner & Galvanized Steel

B-Vent Increaser 4" x 6" Natural Gas Aluminum Inner & Galvanized Steel Outer

Item #:4MIX6

Manufacturer Item: 4MIX6

Manufacturer: METAL-FAB INC

Metal-Fab 4MIx6 B-Vent Increaser 4" x 6" Gas Vent System Steel/Aluminum

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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.

1" minimum clearance to combustibles
1/4" annular insulating air space
SureLock locking system creates secure connections without tools
Hemmed flue and casing eliminate sharp edges
1 year limited warrantyMetal-Fab 4MIx6 B-Vent Increaser 4" x 6" Natural Gas Aluminum Inner & Galvanized Steel Outer,
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Metal-Fab 4MIX6