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Compatible with the 22-120 socket for reliable mounting and integration
Is the 180 degree F rating adjustable
Can I use this flow switch for treated swimming pool water
The isolated coil design prevents electrical interference with the mounting bracket
and stem extension kit
McDonnell & Miller 53-HD Control THPU32HP7Y Compatible with the 22-120 socketUpgrade or restore your boiler's mechanical water feeder with the McDonnell & Miller 53 HD Head Mechanism. Designed specifically for low pressure steam and hot water boilers, this heavy duty Series 53 replacement part (Part Number 137000) provides proportional feed action to maintain safe water levels in systems larger than 5,000 sq. ft. As a head mechanism only, this unit allows for a direct swap onto your existing float chamber without needing to
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