Pool and Spa Pressure Switch 25 AMP 1/8" NPT Plastic 24/240 Volt 1-5 PSI Len Gordon 800120-0 1/8" Universal Pressure Switch, 1/8" Plastic NPT, 25Amp, 24-240V, SPDT, 1-5 PSI. Packaged with 3/16 & 1/4 Compression Fittings and Barb Connections