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Review on Efficient & Reliable: Square Schneider Electric 9013FSG2J21M4 Differential for Optimal Performance by Ryan Gilliam

Revainrating 1 out of 5

Does not reset properly

This switch will not turn on if the water pressure drops to zero due to a leak or repair. I had to manually force it to power the pump until there was some pressure in the line, after which it started working. A careful inspection also revealed that the electrical contact points were badly damaged as well. Apparently very badly done. Wouldn't recommend it.

Pros
  • Pressure switch
Cons
  • Very expensive