With inside dimensions of 6-1/4" x 4-3/4" x 3"

This particular model is a blank thermostat cover

the 47-25350-06 is the standard OEM replacement for 170-degree limit controls featuring a 20-degree differential and 3-inch probe

but it is typically utilized in series with the 24V gas valve or contactor coil circuit

Key Benefits ASME Section IV Certified: Verified performance for hot water heating boilers and hydronic equipment

Heil Quaker ICP 1171000 Circuit Board With inside dimensions of 6-1/4"The Heil Quaker ICP 1171000 Circuit Board is an OEM replacement fan coil control board engineered for high efficiency HVAC performance. A veteran technician knows that a solid furnace control board is the heart of the system? s communication. This specific module features an integrated Time Delay Relay (TDR), which is essential for optimizing blower motor operation by allowing the coil to reach temperature before airflow initiates and purging residual