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 1.5 to 15 GPM Flow, 1.1 to 10 GPM No Flow; Temperature Rating 32 to 225 Deg F; Pressure Rating 150 PSI; Inclusions/Features Sensitivity Adjusting Screw Makes Flow Adjustment Easy, Liquid Tight; Overall Dimensions 3-7/16" Length x 3-3/16" Width x 5-1/16" Height; Minimum Ambient Temperature 32 Deg F; Maximum Flow 16.62 to 27 GPM; Warranty 2 Year from the Date of Manufacture or 1 Year from the Date of Installation