non-spec alternatives

installers ensure full compatibility with existing mounting hardware

With a maximum inlet pressure of 125 PSIG

It is designed to fit standard 1/4" NPT thermowells commonly found in chilled water and hot water piping

Optimized Flow: Features an oversized 1" outlet to prevent backpressure buildup during full-flow discharge events

Lennox 69M18 Pressure Switch 340793-762 non-spec alternativesThe Lennox 69M18 Pressure Switch, also identified by part number 69M1801, is a critical safety component engineered for high pressure monitoring in professional HVACR applications. As a Lennox OEM replacement part, this high pressure cutout switch is factory calibrated to trigger a manual reset (M R) cutout at 640 PSI. This precise threshold is essential for protecting the compressor from catastrophic failure due to excessive discharge pressure,