Square D™ by Merrill™ Pressure Switch, Type FSG, 20 to 40 psi Control Range, Open On Rise, 15 to 30 psi Differential Pressure Range, 1/4 in NPSF, Domestic
Class 9013 Diaphragm actuated Standard action: contacts open on rising pressure Connection: 1/4 in NPSF Internal Cutout Range: 20-65 psi No lead