Pentair Max-E-Therm/MasterTemp Gas Shutoff Switch (42002-0025S) reducers Reference part number 2920812431 when

Reference part number 2920812431 when verifying compatibility

Check spring tension

and reliable poolside use are just as important as basic fit

Skimmer collars help define and support the upper skimmer opening while maintaining a clean

That keeps service focused and cost-conscious

Pentair Max-E-Therm/MasterTemp Gas Shutoff Switch (42002-0025S) reducers Reference part number 2920812431 whenRestore gas shutoff switch function on compatible Max E Therm and MasterTemp heaters with this replacement switch. This component supports the heaters safety controls by helping interrupt gas operation when required by the system design. It is a useful replacement when the original switch is damaged, inconsistent, corroded, or identified during troubleshooting. Because it is part of the gas and safety control circuit, it should be matched carefully