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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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SW-41-188 | Swimables Pentair Heater 2" Half Union Adapter Kit | PKG188Z
Fits these models (2)
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CA P65 Warning: Cancer and reproductive harm. www.p65warnings.ca.gov
The Swimables SW-41-188 Half Union Adapter Kit is a high-quality replacement for Pentair’s PKG188Z, designed for use in MasterTemp and Sta-Rite Max-E-Therm heater equipment. Engineered to connect 2″ slip unions to threaded or union-style fittings, this kit ensures secure, leak-resistant plumbing connections. Manufactured to OEM standards with durable, pool-grade materials, it restores tight seals under pressure and facilitates straightforward maintenance without compromising flow capacity.
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OEM-Equivalent Replacement for PKG188Z: Built to match the original union adapter kit's design and specifications, ensuring a perfect fit for MasterTemp, Max-E-Therm, and Sta-Rite systems.
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Reliable 2″ Half-Union Connection: Allows seamless integration between 2″ slip unions and supporting threaded or union fittings, delivering dependable, leak-resistant plumbing.
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Durable Pool-Grade Materials: Constructed with sturdy thermoplastics and precision molding to resist chemical exposure and provide long-term performance in challenging pool environments.
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Essential for Heater System Integrity: Maintains proper water flow and pressure within heater plumbing, crucial for safe operation and efficient heat transfer.
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Simple, Tool-Light Installation: Designed for quick replacement during system service—minimizing downtime and simplifying heater maintenance tasks.
- (2) Union Nuts
- (2) Couplers / Adapters
- (2) O-Rings
- Pentair MasterTemp Heaters
- Pentair Sta-Rite Max-E-Therm Heaters