Selkirk 3-in x 5-ft Galvanized Steel/Aluminum Gas Vent Pipe - UL441 Approved, Type B, Round/Oval Shape for Residential/Commercial/Industrial Use Item #2495896 | Model #MXL1070-L20K9027G Low level alarm (35 ppm)

Low level alarm (35 ppm) and high level alarm (200 ppm)

Swinging control panel gives easy access to wiring

Ratcheting feature has three settings

flickering-flame moving-mouth and chest

Selkirk 3-in x 5-ft Galvanized Steel/Aluminum Gas Vent Pipe - UL441 Approved, Type B, Round/Oval Shape for Residential/Commercial/Industrial Use Item #2495896 | Model #MXL1070-L20K9027G Low level alarm (35 ppm)Designated for use on approved gas appliances, the 3 in. x 60 in. round type B gas vent pipe is ideal for residential, light commercial and industrial applications. The exclusive lock tab feature adds versatility to installation. Selkirk type B 3 inch x 60 inch gas vent pipe Round and oval gas vent and fittings for residential, commercial and industrial applications Strong, durable galvanized steel outer pipe and inner aluminum pipe Limited lifetime