The Swimables SW-41-188 Half Union Adapter Kit is a high-quality replacement for PentairÕs 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.

• 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.

• Reliable 2_ Half-Union Connection: Allows seamless integration between 2_ slip unions and supporting threaded or union fittings, delivering dependable, leak-resistant plumbing.

• Durable Pool-Grade Materials: Constructed with sturdy thermoplastics and precision molding to resist chemical exposure and provide long-term performance in challenging pool environments.

• Essential for Heater System Integrity: Maintains proper water flow and pressure within heater plumbing, crucial for safe operation and efficient heat transfer.

• Simple, Tool-Light Installation: Designed for quick replacement during system serviceÑminimizing downtime and simplifying heater maintenance tasks.

• (2) Union Nuts
• (2)ÊCouplers / Adapters
• (2)ÊO-Rings

• Pentair MasterTemp Heaters
• Pentair Sta-Rite Max-E-Therm Heaters

The Swimables SW-41-188 Half Union Adapter Kit is designed to replace Pentair PKG188Z on MasterTemp and Max-E-Therm heaters. This section answers installation, troubleshooting, and in-store availability questions.

Installing the Swimables SW-41-188 Kit

This kit connects 2_ slip unions to threaded or union-style fittings, restoring leak-free plumbing.

How do I install the Swimables SW-41-188 adapter kit on my MasterTemp heater?

Does the SW-41-188 work with both MasterTemp and Max-E-Therm models?

Do I need glue or tools to install the SW-41-188 half union adapters?

Can I buy the Swimables SW-41-188 kit in-store today?

Troubleshooting Heater Union Leaks

Leaks often occur when old unions crack, O-rings wear, or adapters are misaligned.

Why is my heater still dripping after installing the SW-41-188 kit?

Could worn O-rings cause leaks even with a new union adapter?

How do I check that the SW-41-188 is tightened securely in place?

Where can I walk in locally for a genuine SW-41-188 union adapter kit?

Finding the Correct Heater Union Kit In-Store

Matching the right SKU avoids mismatches and ensures heater plumbing integrity.

Is the Swimables SW-41-188 the same as Pentair part PKG188Z?

How do I confirm in-store that IÕve got the correct SW-41-188 kit?

Can I compare the SW-41-188 with other Pentair heater unions before purchase?

Is the SW-41-188 usually stocked at pool supply counters near me?