Selkirk 18"/24"/36" Pipe Length (Round Large - Type B Gas Vent) Diameter:20-Inch especially for commercial applications

especially for commercial applications

000 25 6 26" EFCG26N2C (Millivolt) ANSI 40

and 1 - 9" x 18" to 8" slip section in matching color

soot or ash in your home

Selkirk 18"/24"/36" Pipe Length (Round Large - Type B Gas Vent) Diameter:20-Inch especially for commercial applicationsSelkirk 10" to 30" Diameter, 18" 24" 36" 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