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The Hydrolevel 400 is a 24-volt low water cut-off designed specifically for steam boilers, ensuring efficient operation and safety. It effectively replaces OEM models 24TD, 45-400, and 510-811-403.
Prevents boiler dry firing by accurately detecting low water conditions, safeguarding against potential system failures and facilitating routine boiler maintenance.
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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