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Always verify the dimensions (4-1/4" x 2-7/16") before installation
the EL1214-SV can be mounted in vertical or horizontal piping
allowing for flexible configuration within various HVACR setups
eliminating the need for separate enclosures
McDonnell & Miller 305200 Replacement Switch Els PW 17895 Always verify the dimensions (4-1/4"The McDonnell & Miller 305200 Replacement Switch (Model number FS4 33) is a high performance SPDT (Single Pole, Double Throw) snap action assembly specifically engineered for integration with general purpose liquid flow switches. This technician grade component serves as the core electrical interface for Series FS4 3 and FS4 3T units, detecting flow velocity changes to trigger or terminate power to downstream equipment such as pumps, burners, and