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Merrill Manufacturing FSG2M440 is a 40/60 no-lead Square D style pressure switch with low pressure cut-off for pump control. It is a Class 9013 diaphragm-actuated switch with standard action (contacts open on rising pressure), preset 40/60 psi setting and an adjustable cut-out range of 34�65 psi. The unit uses a 1/4" NPSF internal connection and metal construction for installation on water pump systems.
Diaphragm-actuated pump pressure switch, preset 40/60 psi, adjustable 34�65 psi cut-out, 1/4" NPSF connection
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