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Sticker on the pump body (the part with the basket), not on the motor. Motor labels from Century, A.O. Smith or Regal won't match parts.
Label on the side of the tank near the base. Size is in sq ft, e.g. 420 sq ft = C4030 or CCP420.
Rating plate inside the front access panel. Note the BTU and gas type (NG or LP).
Molded into the body or printed on top. Robotic cleaners: on the power supply.
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42002-0029Z | Pentair Switch Membrane For Max-E-Therm & MasterTemp
Fits these models (3)
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CA P65 Warning: Cancer and reproductive harm. www.p65warnings.ca.gov
On the Pentair MasterTemp 125 461059 Heater diagram
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Other parts on the same Pentair MasterTemp 125 461059 Heater
The Pentair Switch Membrane 42002-0029Z is an OEM replacement part engineered for Sta-Rite Max-E-Therm and Pentair MasterTemp pool and spa heaters. Serving as the primary user interface on the heater’s control panel, this membrane ensures accurate input and smooth functionality of all settings. The buttons are clearly marked, responsive, and designed to provide reliable control even under frequent use. Built to OEM Pentair standards, it offers long-lasting durability and precise compatibility with supported models. Installation is straightforward thanks to its secure attachment design, allowing homeowners or technicians to restore heater operation quickly and effectively. By replacing a worn or unresponsive switch membrane, you can maintain safe, efficient heater performance and extend the life of the control system.
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OEM Control Panel Part: Specifically designed for Max-E-Therm and MasterTemp heaters, ensuring precise compatibility and reliable user operation.
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Responsive Button Design: Features clearly labeled, easy-to-use buttons that deliver accurate control over heater functions and temperature settings.
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Dual Compatibility: Works interchangeably as Pentair 472610Z or Sta-Rite 42002-0029Z, supporting both MasterTemp and Max-E-Therm heater models.
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Durability Built-In: Manufactured to OEM Pentair quality, this membrane withstands outdoor conditions and repeated use without losing responsiveness.
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Simple Installation: Attaches easily to the existing control panel, making it a convenient replacement that restores system functionality.
- (1) Pentair 42002-0029Z Switch Membrane
- Pentair Sta-Rite Max-E-Therm Heaters
- Pentair MasterTemp Heaters
Note: Pentair part 472610Z and Sta-Rite part 42002-0029Z are identical components. Although one is labeled under Pentair (for MasterTemp heaters) and the other under Sta-Rite (for Max-E-Therm heaters), they are the same part in both form and function. Most replacement parts for Max-E-Therm and MasterTemp heaters are fully interchangeable, as both brands are manufactured by Pentair and share the same internal design and components.
