475601 Pentair Stack Flue Sensor | Blue | For ETI 400 Gas Pool Heater

475601 Pentair Stack Flue Sensor | Blue | For ETI 400 Gas Pool Heater

Marsoni

M251S

$74.99

Get it in 3 business days with 1 day shipping. Friday, May 29

475601 Pentair Stack Flue Sensor | Blue | For ETI 400 Gas Pool HeaterThe 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

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Initially I had installed non-genuine Lexus filter, which the seller claims it fits Lexus RX. That filter fits (kinda). After installing the air-filter and closing the lid, I could see the edge of the filter because the lid did not close tightly. I am not a mechanic, but I was concerned. Hence, I ordered the genuine Lexus filter from Lexus dealer through Amazon. I paid twice more than non-genuine filter (including extra shipping charge of $10.00). Genuine filter arrived in the FEDEX box (looks and feels pretty sturdy enough to protect the filter) only 2 days after I placed the order. I have just replaced the filter. The lid closes perfectly. Although I spent total $40, for the peace of my mind, it's the money well spent.

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Reviewed in the United States on July 20, 2022

Verified Purchase

Amazon Customer

Houston, US

★★★★★ 5

Fits 2015 Lexus RX350

Perfect fit for a 2015 Lexus RX350.

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Reviewed in the United States on September 5, 2025