Prevents system from pumping when pressure is low Ideal for low-producing water wells 1/4" male NPT connects to most jet pumps Series Name: Pressure Switch Type: Pressure regulator valve Inlet Diameter: 1/4-in Inlet Size in Inches: 1/4-in Outlet Diameter: 1/4-in Inlet Thread Type: MNPT Material: Polyethylene Maximum Pressure: 200 PSI Outlet Thread Type: MNPT Warranty: 1-year limited Compatible Pipe Material: Multi-Purpose CA Residents: Prop 65 Warning(s): Yes Complies with Federal Lead Guidelines: Yes UNSPSC: 40141600