Gems Sensors FS-380P Series Polypropylene Flow Switch, Inline, Piston Type, 0.25 gpm Flow Setting, 3/8" NPT Male Wetted Materials: Polypropylene, PPS Composite, 316 Stainless Steel, Fluorocarbon Electrical Termination: 22 AWG, 24"-26" long Polymeric Leads Switch Type: SPST, N.O. (10VA) Set Point Differential (Maximum): 0.2 Recommended Filtration: 100 micron