Pressure Switch, 20-40 PSI, 1/4" Female NPT Connection with Pulsating Plug on Inlet

Upgrade your water well pump with the Merrill MPSP2040 pressure switch, a top-notch replacement switch designed for all electrically driven water well pumps, including jet, submersible, and reciprocating types. As a vital component for maintaining peak water system performance, the MPSP2040 switch activates the pump at 20 psi (factory set) and deactivates it at 40 psi (factory set). The switch has ¼ in. pressure connection and can be wired to 115-Volt or 230-Volt. The Merrill MPSP2040 pressure switch guarantees optimal performance for your water system. Upgrade today for enhanced water pressure control and lasting reliability. This switch comes with a pulsation plug.

• Factory preset to automatically turn the pump on at 20 psi and off at 40 psi
• Solid brass contacts for better electronic conductivity
• Larger contacts for electrical load to be passed through, unlike cheaper versions
• 2-spring design allows for adjustment of cut-in and cut-out pressure settings
• Cap removes for easy adjustment, instructions inside cover