Flow Switch; Applicable Standard UL, CSA; Nominal Size 1"; End Connection Female Threaded x Female Threaded; Contact Type SPDT; Current Rating 7.4 Amp at 120 Volt AC, 3.7 Amp at 240 Volt AC; Input Supply Rating 120/240 Volt AC at 50/60 Hertz 125 VA; Flow Rate 0.12 to 2.5 GPM Flow, 0.06 to 1.5 GPM No Flow; Temperature Rating 32 to 225 Deg F; Pressure Rating 100 PSI; Inclusions/Features Sensitivity Adjusting Screw Makes Flow Adjustment Easy, Liquid Tight; Overall Dimensions 3-23/32" Length x 3-3/4" Width; Minimum Fluid/Ambient Temperature 32 Deg F; Maximum Flow Rate 16.62 to 27 GPM; Application Water Treatment System, Cooling System, Electronic Circuit, Compressor, Booster Pump, Bearing; Warranty 2 Year from the Date of Manufacture or 1 Year from the Date of Installation