Pentair MasterTemp & Max-E-Therm Heater Thermistor 42001-0053S | Swimables SW-41-053

Pentair MasterTemp & Max-E-Therm Heater Thermistor 42001-0053S | Swimables SW-41-053

Marsoni

M251S

$49.99

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

Pentair MasterTemp & Max-E-Therm Heater Thermistor 42001-0053S | Swimables SW-41-053The Swimables Thermistor SW 41 053 is the sensor behind the temperature reading shown on your heater's control panel. When the display begins reporting abnormally high temperatures, that is a clear signal that this component has failed and needs replacement. Because the thermistor is a non resettable part, the only remedy is a fresh unit. Compatible with most Pentair MasterTemp, Sta Rite Max E Therm, and ETI 400 Natural Gas swimming pool heaters, the

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Second pack of these and I love them. I used them mostly for computer cables in my home office and my work office so I did not constantly have to go digging for laptop power cords and adapters. They have a strong adhesive that is very durable, the installation was super easy, super functional and overall great value for the money. These would be versatile as well if you wanted to use them for say phone charging cables or similar cords that seem to always fall behind a shelf or something similar.

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Reviewed in the United States on April 28, 2026