this part serves as a direct drop-in replacement

37" WC setpoint is accurate to factory specs

Browning VP sheaves are designed for heavier-duty service and can handle up to 25 horsepower depending on the specific drive configuration

and M3 series Nordyne units

United Electric H400K-457 Pressure Switch 319825-402 this part serves as aThe United Electric H400K 457 is a rugged, differential pressure switch designed for precision monitoring in HVACR and industrial process systems. Engineered with a Buna N diaphragm and an epoxy coated NEMA 4X aluminum enclosure, this unit provides high level protection against moisture and debris in demanding field environments. It features a broad adjustable pressure range of 0 to 30 PSID, allowing technicians to fine tune SPDT switch actuation