featuring a 7-inch insertion length and a precise 210-240F cut-out temperature

This draft regulator maintains a consistent natural draft by automatically compensating for changes in atmospheric pressure and chimney temperature

What systems typically use this seal cap

Chemical Resistance: High-density construction withstands rigorous cleaning cycles and sanitizing agents

not primary shut-off valves

Lennox 29M17 Limit Switch Els PW 29614 featuring a 7-inch insertion lengthWhen you're troubleshooting a furnace that's short cycling or throwing a four flash diagnostic code, the Lennox 29M17 Limit Switch is often the first component to inspect. As a critical OEM replacement part, this L215 40F limit switch is engineered to protect the heat exchanger from thermal stress. It features a fixed setpoint that opens the electrical circuit at 215F and automatically resets once the temperature drops to 40F, ensuring the HVAC system