The Swimables SW-21-101 Pump Seal Assembly is a high-quality, drop-in replacement for the PS-1000 shaft sealÑa widely used standard in pool and spa pumps. Designed with a 5/8_ shaft size, it features a Buna elastomer secondary seal, ceramic mating ring, and stainless steel components for reliable, long-term performance. Engineered for easy installation and tight sealing between the wet end and motor, this assembly prevents leaks that can damage pump motors, offering dependable protection in chlorinated, ozone, or saltwater environments.

• Exact Replacement for PS-1000 Seal: Designed to replace the standard PS-1000 shaft seal with matching 5/8_ dimensions and mounting fit for seamless compatibility.

• Durable Ceramic & Buna Construction: Uses a ceramic mating ring paired with Buna elastomers to provide strong, long-lasting sealing and resistance to chemical degradation.

• Stainless Steel Hardware for Strength: Includes corrosion-resistant stainless steel springs and components to maintain alignment and performance under pressure.

• Prevents Motor Damage from Leaks: Creates a reliable, leak-free barrier between the wet end and motor, safeguarding electrical components from water intrusion.

• Easy to Install & Service: Designed for straightforward maintenance, this assembly fits into existing seal plates with minimal effortÑideal for quick service calls.

The Swimables SW-21-101 Pump Seal Assembly replaces the PS-1000 shaft seal and is built for 5/8_ shafts. This section covers installation, troubleshooting leaks, and where to buy the seal in-store.

Installing the SW-21-101 Pump Seal

This seal assembly includes a ceramic ring, Buna elastomer, and stainless steel components for a snug, watertight fit.

How do I install the Swimables SW-21-101 pump seal in my pool pump?

Does the SW-21-101 fit the same as a PS-1000 shaft seal?

Do I need special tools to press the SW-21-101 into the seal plate?

Can I buy the SW-21-101 pump seal assembly in-store today?

Troubleshooting Pump Leaks

Leaks around the shaft area usually indicate a worn seal or improper installation.

Why is my pump still leaking after replacing with the SW-21-101 seal?

Could a scratched ceramic ring cause water bypass around the seal?

How do I confirm the SW-21-101 is seated evenly in the seal plate?

Where can I walk in locally for the Swimables SW-21-101 replacement seal?

Matching the Correct Pump Seal In-Store

Ensuring the right PS-1000 equivalent avoids repeated leaks and motor damage.

Is the Swimables SW-21-101 the same as a standard PS-1000 shaft seal?

How do I confirm at the counter that the SW-21-101 fits my pump model?

Should I replace the seal plate when installing a new SW-21-101?

Is the SW-21-101 normally stocked at pool supply shops near me?