Marathon SP210245 Standard Upper Thermostat

The SP210245 is a standard upper thermostat for certain Marathon water heaters.

If your water heater does not appear to be maintaining the water temperature, you may need a new thermostat. A properly functioning thermostat is integral to the proper operation of your electric water heater.


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The SP210245 is compatible with the following Marathon models:

This is an older model thermostat. Marathon’s now ship with the SP210246 thermostat. For Marathon Heavy Duty models, see part number 210246