Gas Shutoff Switch Replacement for Pentair® Max-E-Therm® & MasterTemp®

Save $23.21
Optimum Pool TechnologiesSKU: AGS-P-MTP-140

Sale price$24.99 Regular price$48.20


The Pentair® Sta-Rite® Gas Shutoff Switch is an important switch in your Max-E-Therm® or MasterTemp® pool heater, and is used to detect when your heat exchanger outlet temperature has exceeded a safe level (140°F) and the switch immediately opens when that happens. You MasterTemp® heater will indicate when it is time to replace the High Limit Switch when the “AGS” LED is displayed.

This Optimum Pool Technologies replacement sensor is triggered at 135°F.


  • Compatibility: Pentair® MasterTemp® (All Models) & Max-E-Therm® (Models SR200, SR333, SR400) Heaters
  • Replaces: 42002-0025S and 42001-0064S


  • Manufacturer: Optimum Pool Technologies, Inc.
  • Model: AGS-P-MTP-140
  • Shipping weight: 1 lbs.
Statements of compatibility here are 100% guaranteed by Pool Guy Supply, Inc. and are not attributable to or made by Hayward® or any other original equipment manufacturer (OEM) of products sold on this website.

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