Universal design serves the widest variety of applications|Replacement for common flow switches from Johnson/Penn, Potter/Taco, Watts, Hydrolevel and other manufacturers|Two electrical knock-outs allows connection from either end|Sensitivity adjusting screw makes flow adjustment easy|Hardened stainless steel bearings minimize friction|Sealed Monel bellows
McDonnell & Miller Liquid Flow Switch, General Purpose, Series: FS4-3, 120/240 VAC, 3.7 to 7.4 A, 50/60 Hz, 1 in NPT, NEMA 1, 32 to 300 deg F Operating