DuraVent Round Type B Gas Vent Model BV 22" Large Diameter Storm Collar h74.75 This limited warranty gives the

This limited warranty gives the purchaser specific legal rights

Model 980-444 Dimensions 10" (W) x 10" (D) x 40" (H)

Heat cure is required for three or more layers

1 - Wall Thimble (4")

DuraVent Round Type B Gas Vent Model BV 22" Large Diameter Storm Collar h74.75 This limited warranty gives theOur 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 Storm Collar Features Used