Product Overview

The US Seal PS-201 is a 3/4" general-service mechanical pump shaft seal used on many compatible pool and spa pumps. This seal helps prevent water from leaking along the motor shaft and is commonly replaced during motor replacement, impeller service, seal plate repair, or pump leak repairs.

Ideal For

Pool service technicians, spa repair professionals, and pool owners replacing a worn or leaking shaft seal on compatible pumps that require a PS-201 / AS-201 style 3/4" seal.

Key Features

US Seal replacement mechanical shaft seal

3/4" shaft size

General-service pool and spa pump seal

Type A mechanical seal design

Buna elastomer construction

Ceramic stationary seat

Molded plastic / carbon-style rotating seal face

Stainless steel spring and metal components

Helps protect the motor from water intrusion caused by seal failure

Recommended during motor replacement or wet-end service

Benefits

The PS-201 helps restore a proper seal between the pump wet end and motor shaft. Replacing a worn shaft seal can help reduce water leaks, prevent motor bearing damage, protect against corrosion, and support reliable pump operation after service. This is a common replacement seal for many residential pool and spa pump applications when the original seal cross-references to PS-201 or AS-201.

Specifications

Warranty & Compatibility

Confirm Before Ordering

Please verify your exact pump model, shaft size, and original seal cross-reference before ordering. Shaft seals are model-specific, and installed seals are typically not returnable.

Customer-Facing Q&A

Q: What is the PS-201 used for?
A: The PS-201 is used to seal the motor shaft area on compatible pool and spa pumps, helping prevent water from leaking into the motor side of the pump.

Q: Is PS-201 the same as AS-201?
A: PS-201 is commonly cross-referenced with AS-201 style shaft seals. Always confirm your pump model or original seal number before ordering.

Q: Does this fit all 3/4" pool pumps?
A: No. Even though this is a 3/4" shaft seal, pump seals are model-specific. Confirm the pump model, seal plate, impeller, and original seal cross-reference before ordering.

Q: Is this good for saltwater pools?
A: The PS-201 is a general-service Buna seal. For saltwater chlorine generator pools, ozone systems, bromine spas, or harsh chemical environments, a Viton or heavy-duty seal version is usually recommended.

Q: Should I replace this when changing the motor?
A: Yes. A new shaft seal should be installed whenever the pump motor is replaced or the pump wet end is opened.