MARS 43370 Pressure Switch 323055 751 ensuring compatibility with existing 230V ensuring compatibility with existing 230V control boards the Fasco A135 is the primary aftermarket replacement for Lennox 7021 8812 and 7021 8819 draft inducers Optimized Fan Cycling: Precise 180 240 PSI setpoints ensure stable head pressure in low ambient temperatures Can this switch be used for R410A applications
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MARS 43370 Pressure Switch 323055-751 ensuring compatibility with existing 230V