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Ships within 48 hours · Estimated delivery Aug 12 - Aug 17
The S3 can be installed into the side on the tank at a higher level below the return line
If you're unsure which part suits
🔧 ✔ 1-2 vs 1-3 vs 2-3 (quick guide)
130 mm from thread to thread housing
Replacement Solar Hot Water Tank Sensor to suit Hills Esteem Blue Tank Sensor Compatible_Wilo Z 15A The S3 can be installedReplacement Solar Hot Water Tank Sensor to suit Hills Esteem Blue Tank Sensor (2007 2010) If you are just replacing the tank sensor on your system, we recommend you check the sensor port or immersion sleeve for moisture. If there is moisture, the sensor port or immersion sleeve will need to be replaced. This is mostly a problem in the older stainless steel hot water tanks. The original sensor port develops pin holes because it is the weaker metal.
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