the 70-22683-01 is an authentic OEM component

25") against the existing unit before installing

leak-proof seal that liquid silicones or generic tapes simply can't replicate in a professional HVACR application

The 3-8 psi actuator spring range is standard for many proportional thermostats

this specific switch is calibrated for M7 models

Field Controls 00963801 Control Els PW 17895 the 70-22683-01 is an authenticThe Field Controls 00963801, designated as the Model 6"M, is a heavy duty barometric draft control engineered for precision regulation in oil fired boilers, wood stoves, and coal burning applications. This 6 inch draft regulator maintains constant draft by compensating for changes in atmospheric pressure and stack temperature, ensuring optimal combustion efficiency and preventing excessive heat loss. Designed for high stability performance, the gate