DuraVent Round Type B Gas Vent Model BV 4" x 10" Large Diameter Increaser h88 Fuel Type: Natural Gas or

Fuel Type: Natural Gas or Liquid Propane BTU/hr Input: 27

Model 19W-Mixed Beachstone Size Range 0

Complete set includes log grate

Deep cover corrugation eliminates the stiffness experienced with other liners

Ceiling Pitch Table

DuraVent Round Type B Gas Vent Model BV 4" x 10" Large Diameter Increaser h88 Fuel Type: Natural Gas orOur 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 Increaser Features The