Description
The genuine OEM Pentair Stack Flue Sensor 475601 serves as a critical safety device within the ETI 400 Gas Heater system. This sensor continuously tracks the temperature inside the stack flue, verifying that the heater stays within safe operational limits at all times. Blue color-coded wiring simplifies identification during setup and routine service inspections. Engineered for consistent, long-term reliability, this sensor plays a key role in shielding your heater from dangerous temperature spikes that could lead to component damage and shortened equipment life.
