DuraVent Round Type B Gas Vent Model BV 18" Flat to 6/12 Pitch Large Diameter Adjustable Roof Flashing d22.3 20-3/4" Unit Depth

20-3/4" Unit Depth

UL 441 Clearances 1" Minimum clearance to combustibles for 3" - 24" Size 5" Technical Drawings & Dimensions

saving energy

Made from durable solid steel

DuraVent Round Type B Gas Vent Model BV 18" Flat to 6/12 Pitch Large Diameter Adjustable Roof Flashing d22.3 20-3/4" Unit DepthOur non positional lock system on the Duravent BV Gas Vent is the best lock system on the market today. The incorporation of the DuraTab feature simply improves our lock system by adding flexibility and meeting market needs. The BV line of Duravent round vent pipe and fittings is designed for use on approved gas appliances in residential and light commercial and industrial applications. What's Included (1) Adjustable Roof Flashing Features Fits flat