Refrigeration Fan Cycle Close On Pressure Rise Pressure Switch, Open: 150 psi, Close 225 psi +/- 15 psi https://nsiindustries.com/product/refrigeration-fan-cycle-close-on-pressure-rise-pressure-switch-open-150-psi-close-225-psi-15-psi/ SWITCH, LOW PRES, FAN CYCLING,5000 PSI
