Rugged Housing Design: Built to withstand the heat and vibration of inducer motor operation in power-vented applications

Reliable Ignition: Provides a consistent gas stream to maintain a strong pilot flame

Broad Series Compatibility: Direct-fit replacement for Maxitrol RV81

the switch is faulty and requires replacement

Engineers specified this unit with a CW rotation fan blade orientation and a 1/2-inch bore positioned on the intake side to ensure proper seating on standard motor shafts

Lennox 59W74 Pressure Switch 319852-301 Rugged Housing Design: Built toThe Lennox 59W74 Pressure Switch is a critical safety component engineered for precision monitoring of inducer motor performance and flue draft integrity. This OEM Lennox furnace pressure switch transitions at a fixed set point of . 80"wc, ensuring the combustion process only initiates when proper negative pressure is established. Featuring a Single Pole Single Throw (SPST) configuration and dual 1 4" barb connections, this switch provides a reliable