Pump Mechanically Controlled Switch Pressure Setting: 40-70PSI, 50-80PSI, 70-100PSI, 95-125PSI,115-150PSI,140-175PSI Pump Mechanically Controlled SwitchDescriptions:1. Joint Screw:1/42. Pressure Range: 40-175PSI3. With One-way Valve or With Four Way Valve4. Pressure Setting:40-70PSI, 50-80PSI, 70-100PSI,95-125PSI,115-150PSI,140-175PSI Pump Mechanically Controlled Switch