DuraVent Oval Type B Gas Vent Model BV 4" Flat to 5/12 Adjustable Roof Flashing ceramic-base Model 670005 Clearance Zero/Zero clearance

Model 670005 Clearance Zero/Zero clearance when installed into a masonry chimney and wrapped with a 1/2" ceramic fiber insulation blanket

single-wall pipe of a wood or coal stove

35-3/16" G

Tempered Glass Size 51

6-in Pipe Damper

DuraVent Oval Type B Gas Vent Model BV 4" Flat to 5/12 Adjustable Roof Flashing ceramic-base Model 670005 Clearance Zero/Zero clearanceOur 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) Oval Adjustable Roof Flashing Features The