Type B 90 Degree Gas Vent Elbow Fitting For Venting Of Gas Appliances Double Wall Construction With Aluminum Inner & Galvanized Outer Wall Must Be Used Only With Duravent B-Vent Pipe & Fittings To Comply. more
7 x 18 Section B-Vent can be used as a connector or a stand alone vent. Use it for natural gas fireplaces gas fired Category I furnaces boilers water heaters and space heaters. The recessed inner wall is .012 aluminum. The outer wall is .018 galvanized... more
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