Johnson Controls P170LB-1C Dual Pressure Control, SPST Price: $186.30 (as of 25/09/2021 16:17 PST- Details)

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All-steel case and cover built to provide long lasting, rugged protection for internal components
Sight-set calibrated pressure adjustment displays a visible pressure scale, fully adjustable through the range without removing the cover (on NEMA 1 enclosure models)