McDonnell & Miller 143600 Model 64 – Low Water Cut-Off
McDonnell & Miller model number 64 is a float-operated low water cut-off for steam or hot water boilers. This control features an automatic reset with dual 120 volt switches for low water cut-off and alarm or electric water feeders. Its maximum pressure is 50 psi and has a tapped 1″ FIP connection for equalizing pipes. Blow down valve required.

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