Gems Sensors FS-500 Series Polypropylene Flow Switch, Elbow, Shuttle Type, 2 gpm Flow Setting, 3/4" NPT Female Wetted Materials: Polypropylene, Viton, 316 Stainless Steel, PH 15-7 Mo Stainless Steel Electrical Termination: 22 AWG, 24"-26" long Zip Cord Lead Wires Switch Type: SPST, N.O. (20VA) Set Point Differential (Maximum): 0.2 Recommended Filtration: 100 micron