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The Lennox 78W57 is a single-pole, single-throw (SPST) pressure switch designed for reliable pressure monitoring and control in various industrial applications. Ideal for use in HVAC, refrigeration, and hydraulic systems, this pressure switch effectively manages system operations by monitoring pressure changes within a range of 0.03 to 0.57 inches of water column (WC).
This pressure switch offers precise control and easy integration into existing systems with its 1/4-inch NPT connection, supporting a wide range of industrial applications.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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