DuraVent Round Type B Gas Vent Model BV 28" Firestop / Support Plate burncrete-birch Traditional cast iron arched door

Traditional cast iron arched door design

they cause BLUE and GREEN colors to appear in the orange flames

door latch assembly

The Flex 68LC/68RC

DuraVent Round Type B Gas Vent Model BV 28" Firestop / Support Plate burncrete-birch Traditional cast iron arched doorOur 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 Firestop Support Plate Features The 2 piece