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The McDonnell & Miller 172809 is a head mechanism for low water cut-off and pump controllers. This part is specifically designed for the 150 series models. The 172809 model features a manual reset option that allows for easy operation in various conditions.
This replacement part ensures effective operation for float type controllers, providing a solution for low water scenarios in heating systems.
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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