Our 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.

DuraVent® Round Adjustable Pipe, 6 in Nominal, Aluminum, Galvanized, 12 in Length, Additional Information: For Use with Type B Gas Vent System, DuraLock® and DuraTab® Locking Device, 3-1/2 to 10-1/2 in L Adjustable

• Used in combination with a straight length, this component assures that an exact required vent length can be achieved
• Allows for easy disassembly and can absorb the linear expansion of longer pipe lengths