Features low water cut-off switch to shut off pump at 12 P.S.I. to prevent overheating damage to submersible well pumps. Recommended for submersible pumps. Compatible with jet pumps, submersible pumps, and reciprocating pumps. The standard action contacts open on rising pressure. Diaphragm actuated – 1/4″ 18 NSF internal threads. No. FSG2J20M4CP: Pressure Rating: 20 – 40 psi, Type: Electrically Driven Water Pumps, Contact Type: Diaphragm Actuated, Thread: 1/4″-18 NSF, Pkg Qty: 1, Package Type: Box No. FSG2J21M4CP: Pressure Rating: 30 – 50 psi, Type: Electrically Driven Water Pumps, Contact Type: Diaphragm Actuated, Thread: 1/4″-18 NSF, Pkg Qty: 1, Package Type: Box
