Liquid Flow Switch, Ambient Temperature - Maximum 200 Degrees F, Ambient Temperature - Minimum -20 Degrees F, Connection Size 1 in, Connection Type FNPT, Contact Rating (DC) 20 V, Filter Rating - Maximum 150 micron, Flow Rate - Maximum 15 gpm, Flow Rate - Minimum 5 gpm, Flow Switch Type Piston, Hazardous Location Specification Class I, Div 2, Group A, B, C, D, Housing Material Bronze, Media Temperature - Maximum 200 Degrees F, Media Temperature - Minimum -20 Degrees F, Overall Height 3 in