355331 | Pentair Diffuser O-Ring For SuperFlo and Challenger Pumps

The Pentair 355331 Diffuser O-Ring is an OEM replacement part designed for SuperFlo VS/VST and Challenger pumps manufactured after 6/17/19. This O-ring creates a secure, watertight seal within the pump’s diffuser, preventing leaks that can compromise water flow and efficiency. Constructed from durable, chemical-resistant materials, it withstands continuous exposure to pool water and chemicals, helping to extend the life of the pump. As an essential part of regular pump maintenance, replacing worn O-rings with genuine OEM parts like the 355331 ensures reliable sealing, optimal pump performance, and consistent water circulation throughout the system.

Highlights

• OEM Sealing Component: Pentair 355331 diffuser O-ring designed for SuperFlo VS/VST and Challenger pumps, ensuring proper fit and compatibility.

• Prevents Water Leaks: Maintains a tight, reliable seal within the pump diffuser, protecting system performance and efficiency.

• Durable OEM Construction: Built from high-quality, chemical-resistant rubber materials for long-lasting performance under pool conditions.

• Maintains System Reliability: Prevents leaks that could cause pump inefficiency or damage, preserving overall equipment longevity.

• Essential Maintenance Item: A critical part of regular upkeep to keep pumps operating safely, efficiently, and without interruption.

• Supports Water Flow: Helps sustain proper pressure and water circulation through the filtration system.

• Easy Replacement: Designed to meet Pentair specifications, ensuring quick, secure installation during service.

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

Looking for the OEM Pentair Diffuser O-Ring 355331? This section explains installation, maintenance, and troubleshooting for Pentair SuperFlo and Challenger pumps, especially for customers shopping in store.

Installing the Pentair 355331 O-Ring

This O-ring fits securely within the pump diffuser, creating a watertight seal. Proper installation prevents leaks and ensures your pump maintains strong performance.

How do I install the Pentair 355331 diffuser O-ring in my SuperFlo pump?

Can I buy the 355331 O-ring in store at Discount Pool Mart today?

Do I need lubricant when installing the 355331 O-ring?

Is the 355331 a direct replacement for the Challenger pump diffuser?

Troubleshooting Pump Leaks and Seal Failures

If you notice water around the diffuser area, the O-ring may be worn. Replacing with the 355331 restores a proper seal and protects pump efficiency.

Why is my SuperFlo VST pump leaking near the diffuser?

Can a worn diffuser O-ring cause loss of pressure in my pump?

How do I know if the 355331 needs to be replaced?

Does Discount Pool Mart stock the 355331 O-ring year-round?

Finding the Right Part In Store

The 355331 is a genuine Pentair OEM replacement O-ring. Carrying the SKU ensures quick confirmation and purchase at the counter.

Where can I buy the Pentair 355331 diffuser O-ring near me?

Can I confirm store availability before visiting?

Does the in-store package include just the O-ring?

Is the 355331 O-ring commonly stocked for SuperFlo pumps?

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