


Pentair MasterTemp & Max-E-Therm 140° Automatic Gas ShutOff Switch | 42002-0025S | Swimables SW-41-025
Marsoni
M251S
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Friday, May 29
Pentair MasterTemp & Max-E-Therm 140° Automatic Gas ShutOff Switch | 42002-0025S | Swimables SW-41-025The Swimables SW 41 025 is a 140F automatic gas shutoff switch engineered for direct integration into the electrical systems of Pentair MasterTemp and Sta Rite Max E Therm pool and spa heaters. This switch functions as a thermal safety device that continuously monitors internal heater temperature. If the temperature climbs beyond 140 degrees Fahrenheit, the switch immediately cuts the gas supply, stopping combustion before the situation can escalate
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Reviewed in the United States on May 21, 2026
★★★★★ 1
Don’t buy
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Good purchase
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Storage may be a problem
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