Liquid Flow Switch, Ambient Temperature - Maximum 212 Degrees F, Ambient Temperature - Minimum 0 Degrees F, Connection Size 3/4 in, Connection Type FNPT, 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 Polypropylene, Media Temperature - Maximum 212 Degrees F, Media Temperature - Minimum 0 Degrees F, Overall Height 3.8 in, Overall Length 1.5 in, Overall Width 2 in, Phase -