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  • MAMCO Precision Switches

    Water pump pressure switches manufactured by MAMCO Precision Switches are for use as original equipment on water pumps or automatic water pumping systems. Available in normally closed switch configuration and with optional auto on/off button for manual compressor shutoff, the switches feature operating pressure ranges of 40-250 psi, 15-60 psi, 14.5-87 psi, or 29-159.5 psi.