Liquid Flow Switch Ambient Temperature - Maximum 200 Degrees F Ambient Temperature - Minimum -20 Degrees F Connection Size 1/4 in Connection Type FNPT Contact Rating (DC) 20 V Filter Rating - Maximum 50 micron Flow Rate - Maximum 1.5 gpm Flow Rate - Minimum 1 gpm Flow Switch Type Piston Housing Material Brass Media Temperature - Maximum 200 Degrees F Media Temperature - Minimum -20 Degrees F Overall Height 1 in Overall Length 2.8 in Overall Width 1 in Phase -