Square D Pumptrol, water pump switch 9013FS, adjustable diff., 20 40 PSI

Rugged, robust construction provides a long life and provides years of uninterrupted, worry-free serviceIt has visible vertical contacts, easy to inspect without removalDesigned for the direct control of motors in pump applicationsLow pressure cut-off (AUTO-START-OFF) operates at approximately 10psig below cut-in and will turn off the pumpOffers 18 months warranty