This is the model number on my pressure switch Model #: FSG2J21CP. I have it set real close to 30 PSI
The Square D by Schneider Electric pressure switch works with jet pumps, submersible pumps and reciprocating pumps and the 30 - 50 PSI pressure switch features a 1/4-in pressure connection
Suitable for jet pumps, submersible pumps and reciprocating pumps
30 - 50 PSI
Standard action contacts
Maximum pressure 220 PSIg
Captive cover screw
Single and 3 phase rated
Can be mounted in any position
Conduit plug included
http://www.lowes.com/pd_67599-296-FS...ductId=3134937