Liquid Flow Switch Ambient Temperature - Maximum 180 Degrees F Ambient Temperature - Minimum -20 Degrees F Connection Size 3/4 in Connection Type FNPT Contact Rating (DC) 20 V Filter Rating - Maximum 150 micron Flow Rate - Maximum 14 gpm Flow Rate - Minimum 7 gpm Flow Switch Type Piston Hazardous Location Specification Class I Div 2 Group A B C D Housing Material Bronze Media Temperature - Maximum 180 Degrees F Media Temperature - Minimum -20 Degrees F Overall Height 3.8 in