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The MCDONNELL 194-7B is a reliable solution for maintaining water levels in steam boilers. This combination low water cut-off and pump controller includes a potentiometer switch and is designed to handle a maximum pressure of two hundred fifty PSI.
This controller ensures consistent water levels and features a design that includes integral tappings for gauge glass and tri-cock installations. Utilizing magnetic repulsion technology, it eliminates the need for bellows.
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