-
Diameter:
5 Inch I.D.
-
Length:
18 Inch
Gas Vent Pipe; Type Type B Gas Vent, Double Wall, Oval; Size 5 Inch Inner Diameter; Length 18 Inch; Material Aluminum (Inner Wall), Galvanized Steel (Outer Wall); Temperature Rating 400 Deg F; Applicable Standard UL 441; Clearance 1 InchThe Hart & Cooley® double-wall, air-insulated B-Vent system is secured by locking joints . Properly installed, the vent won’t come apart through vibration, and offers protection against vent failure or fire hazard . Type B Gas Vent is designed for negative pressure applications and flue gas temperatures not exceeding 400°F above ambient for Category I appliances .