Lennox 57M67 Pressure Switch Industrial Durability: Rated for high-humidity

Industrial Durability: Rated for high-humidity environments (up to 95% condensing) to ensure reliable operation in outdoor enclosures

Durable Sealing: Features a soft metal seat and advanced stuffing box design to prevent bypass and stem leaks

The valve is CSA listed and meets ANSI Z21

Designed for high-side protection or fan cycling applications

ensuring a perfect fit for 1600

Lennox 57M67 Pressure Switch Industrial Durability: Rated for high-humidityThe Lennox 57M67 Pressure Switch is a high precision OEM component engineered for critical safety monitoring in gas fired furnaces and HVAC systems. As a veteran technician knows, maintaining the correct pressure threshold is vital for inducer motor verification and combustion safety. This SPST pressure switch is factory calibrated to actuate at 1. 71" WC (water column), ensuring that the exhaust blower is moving sufficient air before the ignition