MARS 43304 Pressure Switch 320819-301 94" WC SPST furnace switch

94" WC SPST furnace switch facilitates critical vacuum verification

Industrial-Grade Rating: Rated for 420V applications

the COM8291 ensures consistent refrigerant compression

ensuring the stoichiometric ratio remains within factory tolerances

Complete Installation Hardware: Includes required gaskets and bolts to streamline the installation process and reduce downtime

MARS 43304 Pressure Switch 320819-301 94" WC SPST furnace switchThe MARS 43304 Pressure Switch is a high performance SPST condenser fan cycling switch engineered for modern HVACR systems, specifically optimized for R410A applications. Operating on a close on rise logic, this switch features a factory set 225 PSI cut in and 150 PSI cut out (Open Fall), providing precise low ambient head pressure control. Designed for direct mounting via a 1 4 inch female flare S. A. E. connection with an integrated internal