Leaks at chlorinators or pump diffuser connections are often traced back to a single worn sealing component. The Aladdin O-359-0 Multi-Use O-Ring is a precision replacement designed to restore a secure, leak-free seal in chlorinator housings and pump diffuser assemblies used in pool circulation systems.

Engineered as a direct replacement for multiple OEM part numbers—including Fischer-Porter 101W816U01, Pentair® P-24262, and 07-1444—this O-ring provides OEM-equivalent fit and dependable sealing performance. It is commonly used in chlorinators and pump diffuser applications where consistent compression and chemical resistance are critical.

At Benchmark Pool Supply, we routinely see chlorinator leaks caused by O-rings that have hardened or flattened due to constant exposure to chlorine and pressure cycling. The Aladdin O-359-0 is manufactured from pool-grade elastomer formulated to withstand harsh chemical environments, helping prevent leaks, air intrusion, and premature equipment wear.

Designed for Chlorinator & Pump Diffuser Applications

The Aladdin O-359-0 O-Ring is specifically sized and formulated for sealing diffuser and chlorinator connections in pool circulation systems. These components operate under constant chemical exposure, making material quality and fit essential.

Common applications include:

• Chlorinator housings

• Pump diffuser assemblies

• Pool circulation system sealing points

Using the correct O-ring ensures proper compression without stretching or pinching, which helps maintain system pressure and reliable sanitizer delivery.

Why Replacing Chlorinator O-Rings Is Important

Chlorinators and diffuser housings are among the most chemically aggressive environments in a pool system. When O-rings degrade, symptoms often include:

• Water leaking around chlorinator housings

• Air entering the pump, causing cavitation

• Inconsistent sanitizer delivery

• Reduced circulation efficiency

Replacing worn seals with the Aladdin O-359-0 O-Ring is a simple preventive maintenance step that protects your equipment and keeps your pool operating smoothly.

Built for Pool-Grade Durability

This O-ring is manufactured from elastomer specifically formulated for swimming pool use. It resists chlorine degradation, maintains elasticity, and delivers long-term sealing reliability in demanding conditions.

It is well suited for:

• Routine chlorinator maintenance

• Pump diffuser repairs

• Professional pool service technicians

• DIY pool owners seeking OEM-quality parts

Product Specifications

Buy with Confidence from Benchmark Pool Supply

When you purchase the Aladdin O-359-0 O-Ring from Benchmark Pool Supply, you’re buying from a pool equipment specialist who understands real-world compatibility—not just part numbers. We stock proven replacement parts that fit correctly and perform reliably in the field.

If you need help confirming compatibility with your chlorinator or pump, our team is always ready to assist.