Liquid Flow Switch Ambient Temperature - Maximum 275 Degrees F Ambient Temperature - Minimum -20 Degrees F Connection Size 3/8 in Connection Type NPT Contact Rating (DC) 20 V Filter Rating - Maximum 100 micron Flow Rate - Maximum 5 gpm Flow Rate - Minimum 1 gpm Flow Switch Type Piston Housing Material 316 Stainless Steel Media Temperature - Maximum 275 Degrees F Media Temperature - Minimum -20 Degrees F Overall Height 1 in Overall Length 3.5 in Overall Width 0.9 in Phase -