Selkirk 12" Pipe Length (Round Large - Type B Gas Vent) Size:18"x12" Available in various colors to

Available in various colors to match your heater

Keep out of reach of children

Do I have to use B-vent chimney on linear style fireplaces

Black Steel Surround and Overlay

Selkirk 12" Pipe Length (Round Large - Type B Gas Vent) Size:18"x12" Available in various colors toSelkirk 12" Pipe Length Easy to assemble and can be combined to obtain the required installation height. To calculate installed height, deduct 1" for each joint. Round Large Type B Gas Vent Model R Double Wall Type B Gas Vent is designed for quick and easy installation. It's durability makes it ideal for multi family and commercial industrial applications. Featuring an aluminum inner liner designed to assure quick vent action and minimal condensation.