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The OEM Pentair Diffuser O-Ring, part number 355331, is a high-quality replacement component designed specifically for Pentair SuperFlo and Challenger pumps. This O-Ring ensures a secure and tight seal within the pump's diffuser, preventing water leakage and maintaining optimal pump performance. Constructed from durable materials, it enhances the longevity and efficiency of your pool pump by ensuring all parts remain properly sealed and functional. This makes it a crucial part for the regular maintenance and effective operation of your pool's filtration system.
Highlights
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Secure and Tight Seal: The Pentair Diffuser O-Ring 355331 ensures a secure and tight seal within the pump's diffuser, preventing water leakage and maintaining optimal pump performance.
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High Compatibility: Specifically designed for Pentair SuperFlo and Challenger pumps, this O-ring guarantees a perfect fit and seamless integration into your existing system.
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Durable Materials: Constructed from high-quality, durable materials, this O-ring enhances the longevity and efficiency of your pool pump by ensuring all parts remain properly sealed and functional.
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Essential for Maintenance: This O-ring is crucial for the regular maintenance of your pool's filtration system, helping to sustain effective operation and prevent potential damage from leaks.
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Optimal Pump Performance: By preventing water leakage, the Pentair Diffuser O-Ring helps maintain optimal water flow and pressure, ensuring your pool pump operates at peak efficiency.
Includes
- (1) Pentair 355331 Diffuser O-Ring
Compatibility
For pumps manufactured after 6/17/19
- Pentair SuperFlo VS / VST Pumps
- Pentair Challenger Pumps
- Pentair Diffuser - 355949
Note: This o-ring may be compatible with your pump, please refer to your systems owners manual to ensure compatibility.
Additional Info
The OEM Pentair Diffuser O-Ring 355331 is designed for SuperFlo and Challenger pumps, including diffuser part 355949. This section answers installation, troubleshooting, and online ordering questions, with free shipping included.
Installing the Pentair 355331 O-Ring
This O-ring ensures a tight seal in Pentair diffusers to prevent leaks. Installation is simple and helps maintain optimal pump performance.
How do I install the Pentair 355331 O-ring into my SuperFlo VS pump?
Does the 355331 O-ring ship free when ordered online?
Is this O-ring compatible with Pentair Challenger pumps?
What steps ensure a secure seal during installation?
Maintaining Pump Performance
A functioning O-ring prevents leaks and ensures efficient water pressure. Replacing with the OEM 355331 keeps your pump operating smoothly.
Why is my pump losing water near the diffuser seal?
Can a cracked O-ring cause reduced efficiency in SuperFlo pumps?
Does replacing with the 355331 extend pump longevity?
Can I order a spare O-ring online for backup use?
Ordering and Free Shipping Options
SOSPool.com provides the Pentair 355331 O-ring with fast delivery and free shipping. Customers receive the OEM part ready to install.
Can I buy the Pentair 355331 O-ring online today with free shipping?
Is the 355331 O-ring always in stock for quick delivery?
Does SOSPool.com ship the O-ring in sealed OEM packaging?
How fast will the 355331 O-ring arrive after placing my order?
Diagram

Questions & Answers
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