Thermostat, AC High Limit, WHITE DOT - ELE-254-010

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Thermostat, AC High Limit, WHITE DOT - A/C (Electric) High Limit Thermostat 230 degrees -ELE-254-010
This thermostat is used on 431 series of Aqua-Hot, which includes 920-431/12, AHE-100-00S, AHE-100-01S, AHE-100-02S and similar. Includes new mounting and terminal screws.
Looks like this