SELKIRK RV 4 In. x 3 Ft. Round Gas Vent Pipe

Easy to assemble and can be combined to obtain the required installation height. Couplers overlap 1-1/2" when joined. Assembled length is 1-1/2" less than listed lengths. Size refers to the inside diameter of the pipe or fitting. The outside diameter of RV is approximately 1/2" larger. Type B gas vent.

Features:

• Snap together non-positional lock system
• Die formed ends
• Venting gas fired appliances, water heaters, furnaces, stoves, etc.
• LockTab An alternative method to secure pipe when required by local code
• Rugged construction: strong, durable galvanized steel outer pipe, inner aluminum pipe
• Double-walled construction with built-in air space keeps inner pipe hot and outer pipe relatively cool
• UL 441 listed & meets standards NFPA54 & NFPA211 when properly installed