always cross-reference your furnace model number before purchase

Engineered with a 3/4" sweat connection

allowing for quick extraction without damaging the mating pulley or motor shaft

With a robust maximum working pressure (MWP) of 680 psig and an MOPD of 300 psig

Is the MARS 19550 compatible with 3ARR3MARS550

Hydrolevel FS200 Switch 30067439-890 always cross-reference your furnace modelThe Hydrolevel FS200 Liquid Flow Switch (Part Number 44 200) is a heavy duty, general purpose control designed for high reliability flow detection in hydronic heating and cooling systems. Built to withstand a maximum pressure of 160 PSI and fluid temperatures up to 250? F, this switch is the industry standard for protecting boilers, pumps, and chillers from no flow conditions. Its universal design allows it to serve as a direct field replacement for