US Seal PS-201 – Premium Pool Pump Shaft Seal for Motors and Impellers

Protect Your Pump and Prevent Leaks with the U.S. Seal PS-201

Keep your pool pump running smoothly and leak-free with the U.S. Seal PS-201 Premium Pump Shaft Seal—the industry-standard replacement for a wide range of pool and spa pumps. Designed to prevent water from leaking along the motor shaft, this high-performance mechanical seal helps extend the life of your pump’s bearings, motor, and impeller assembly.

The PS-201 is engineered for reliability under continuous use and is compatible with popular pump models from Hayward®, Pentair®, Jandy®, Sta-Rite®, and Jacuzzi®. Whether you’re performing preventative maintenance or replacing a failed seal, this premium-grade part delivers long-lasting performance and peace of mind.

The Small Part That Makes a Big Difference

Even a small leak can cause corrosion, bearing damage, and electrical failure in your pool pump motor. The U.S. Seal PS-201 eliminates this risk by providing a watertight barrier between the pump’s wet end and motor.

Built with high-quality elastomers, a carbon-ceramic sealing surface, and a stainless-steel spring, this seal maintains a perfect fit and balanced compression, even under high pressure and heat. It’s a simple replacement that can save you from costly repairs or premature pump failure.

Industry-Leading Build Quality

The PS-201 is built to meet or exceed OEM performance standards. Each seal includes:

• Carbon face for superior sealing ability.

• Ceramic seat for hardness and thermal resistance.

• Stainless-steel spring to maintain consistent tension and alignment.

• Nitrile rubber bellows for chemical and temperature resistance.

This combination ensures smooth, low-friction operation while withstanding continuous exposure to chlorinated water, saltwater, and high pump pressures.

Universal Fit Across Major Pump Brands

The U.S. Seal PS-201 fits dozens of popular pool and spa pumps, including:

• Hayward® Super Pump, Super II, Max-Flo, PowerFlo LX

• Pentair® WhisperFlo, Challenger, SuperFlo

• Jandy® Stealth and FloPro

• Jacuzzi® Magnum and CF series

• Sta-Rite® Dura-Glas and Max-E-Glas

If your pump uses a standard 5/8" motor shaft, this seal is the correct fit. It replaces common OEM part numbers including PS-201, 1000, U109-136SS, and 354545.

Precision-Engineered for a Perfect Seal

Each PS-201 is machined with exact tolerances to ensure smooth mating between the carbon face and ceramic seat. The two surfaces rotate against each other under uniform pressure, forming a micro-thin water film that lubricates the seal and prevents dry running.

The result:

• Zero leakage under normal operation.

• Reduced friction and heat buildup.

• Extended motor and impeller life.

Proper sealing helps maintain optimal pump pressure and efficiency while protecting the mechanical heart of your pool system.

Easy Installation for DIY or Professional Use

Installing the U.S. Seal PS-201 is straightforward and can be completed in under an hour with basic tools:

1. Shut off power to your pump and drain all water.

2. Disassemble the wet end and remove the impeller.

3. Press out the old shaft seal components.

4. Clean the seal housing and impeller bore.

5. Install the new ceramic seat (white ring) in the housing using clean water or silicone lubricant.

6. Press the carbon face assembly onto the impeller shaft evenly by hand.

7. Reassemble the pump and test for leaks.

Avoid using petroleum-based lubricants or touching the carbon and ceramic faces directly—clean, dry installation ensures maximum longevity.

Built to Handle the Harshest Conditions

Pool systems face tough conditions: fluctuating temperatures, water chemistry, and constant circulation. The PS-201 is designed to withstand them all. Its nitrile elastomers and carbon-ceramic interface resist chemical degradation and scaling, maintaining performance over thousands of operating hours.

This seal is ideal for:

• Chlorine and bromine pools

• Saltwater systems

• Spas and hot tubs

• Commercial or high-use pools

No matter your pool setup, the PS-201 delivers reliable sealing you can count on.

Prevent Costly Pump Repairs

A leaking shaft seal can quickly turn into a major repair. Water intrusion leads to bearing rust, electrical shorts, and overheating. Replacing the shaft seal with the U.S. Seal PS-201 during regular maintenance helps avoid these problems and keeps your pump operating efficiently.

It’s an inexpensive preventative measure that can extend your pump’s service life by years.

Product Specifications

Why Choose U.S. Seal Manufacturing

U.S. Seal Manufacturing is a trusted American brand known for producing premium mechanical seals for pool, spa, and industrial applications. Each seal is manufactured to ISO-certified standards, ensuring top performance and reliability.

When you choose a U.S. Seal PS-201, you’re investing in proven engineering, superior materials, and industry-leading quality control that professionals depend on.

Buy with Confidence from Benchmark Pool Supply

At Benchmark Pool Supply, we stock authentic U.S. Seal replacement parts for residential and commercial pool systems. The PS-201 Premium Pump Shaft Seal is one of our most trusted maintenance items—recommended by technicians for dependable sealing and long-lasting performance.

We offer fast shipping, expert support, and verified OEM compatibility for all major pool pump brands, ensuring your system stays efficient, dry, and dependable.

---

Frequently Asked Questions

What pumps does the U.S. Seal PS-201 fit?

The PS-201 fits most 5/8" motor shaft pool and spa pumps, including models from Hayward®, Pentair®, Jandy®, Jacuzzi®, and Sta-Rite®.

What is the difference between PS-201 and PS-1000?

They are functionally equivalent; the PS-201 is U.S. Seal’s direct replacement for PS-1000 and other OEM variants using the same carbon-ceramic configuration.

Can I use the PS-201 in saltwater pools?

Yes. The PS-201 features nitrile and stainless-steel components that are resistant to saltwater corrosion and chemical exposure.

How often should I replace my pump shaft seal?

Replace the seal whenever you replace the impeller or motor, or if you notice water leaking between the motor and pump housing.

Does the PS-201 come pre-lubricated?

No. Apply a thin film of water or silicone-based lubricant to ease installation—avoid petroleum products, which can degrade the elastomer.