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The core dimensions are 7-3/8 inches by 8-3/8 inches with a 2-1/2 inch depth
Complete Kit: Consolidates all necessary O-rings for a full filter housing overhaul in one package
It excels at modulating steam loads
Advanced Diagnostics: Equipped with onboard system diagnostics to facilitate faster troubleshooting of common error codes and sensor malfunctions
When maintaining a Watts RK 909S 3/4-1
AERCO Boiler and Water Heater 123966 Temp Switch 318973-401 The core dimensions are 7-3/8Optimize your heating system's safety with the AERCO 123966 Over Temperature Switch with Auto Reset. This genuine AERCO boiler part is a critical safety component designed to prevent system damage by monitoring excessive heat conditions. As a high quality OEM replacement temperature switch, it features an automatic reset function that restores operation once temperatures return to a safe range, typically between 0F and 180F. Constructed from durable
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