DuraVent Round Type B Gas Vent Model BV 30" x 12" Large Diameter Double Wall Rigid Pipe w40.75 8" H Weight BXL/BXR Model:

8" H Weight BXL/BXR Model: 321lb [145kg]

Extension Knob

(WxHxD) SPS7520N5/L5:

measure the pitch of the roof and select the proper flashing

Our Gravity Vented Furnaces utilize state-of-the-art technology for better fuel efficiency

DuraVent Round Type B Gas Vent Model BV 30" x 12" Large Diameter Double Wall Rigid Pipe w40.75 8" H Weight BXL/BXR Model:Our 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) Large Diameter Round Rigid Pipe Features Easy