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This differential pressure switch acts as an air proving switch
Improved Performance: Restores the valve's original "metallic click" and tight sealing to prevent hazardous leaks
featuring an outer circumference of 46 inches and a top width of 1/2 inch (A-section)
Can I use this for both LP and Natural Gas
McDonnell & Miller 63-M Low Water Cut Off Refrigerant This differential pressure switch actsThe McDonnell & Miller 63 M (Part Number 143100) is a heavy duty, float operated mechanical low water cut off designed for superior reliability in both hot water and steam boiler applications. Built for contractors who require a dependable safety interface, this unit features a manual reset mechanism and a robust No. 2 dual switch assembly. These switches provide simultaneous low water cut off protection and a dedicated circuit for an electric water
