ST-5VH Flow Switch (Can be mounted vertical & horizontal)  Pressure, Minimum: 75 PSI Max psi 5000 Flow Rate, Minimum: 1.0 GPM Flow Rate, Maximum: 8.0 GPM Inlet: 3/8" FPT Outlet: 3/8" FPT Cord/Lead Length: 47 inches Max Temp 176 degrees F. WIRING INSTRUCTIONS: Lead #1 to Line/Power Lead #2 to Load Yellow with green tracer to Ground Reed Switch Adjustment: depending on the system flow, it is normal for the magnet position to vary. This variance may require adjustment of the reed switch upon initial installation, especially at lower flow rates. If the switch fails to close upon initial flow, simply loosen the adjustment screw and position switch so it properly opens/closes according to flow conditions.