DuraVent Round Type B Gas Vent Model BV 3" x 18" Adjustable Double Wall Pipe btu108000 DuraBlack is an excellent choice

DuraBlack is an excellent choice

Controlling the appliance heat output:

The Flex 122SS

It fits any Napoleon fireplace and protects any media from being damaged by the flames of the burner

DuraVent Round Type B Gas Vent Model BV 3" x 18" Adjustable Double Wall Pipe btu108000 DuraBlack is an excellent choiceOur 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) Round Adjustable Pipe Features Used in