Replace your SuperFlo locking ring and restore a proper seal with your pump with the Pentair 350090 SuperFlo Locking Ring. Specifically, this locking ring secures pump lids with tight, reliable seals, protecting performance, and extending pump life. Also, Pentair locking rings deliver dependable durability and the perfect OEM fit.
What does the Pentair 350090 Locking Ring do for my SuperFlo pump?
The Pentair 350090 Locking Ring seats the pump lid properly keeping it in place, ensuring the O-Ring seals properly preventing air leaks and priming issues. Furthermore, 350090 maintains strong suction and stable flow, protecting the motor and improving daily performance. Additionally, ShastaPoolSupply.com carries genuine Pentair replacement parts and with our expertise we will help find the correct part you need.

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Key Features
- Genuine Pentair replacement ensures proper sealing and long-term reliability
- Easy hand-tight installation fits SuperFlo pumps without tools
- Durable composite construction resists cracking, UV fade, and pressure stress
- Protects pump performance by reducing air leaks and maintaining prime
- Direct-fit design matches original Pentair factory specs
Technical Specifications
- Compatible With: Pentair SuperFlo pool pumps (all standard models)
- Material: Reinforced composite polymer
- Installation: Hand-tighten until snug — no wrench required
Specs
- Part Number: 350090
- Manufacturer: Pentair
Why Pool Professionals Trust the Pentair Brand?
Pentair manufacturers premium pool equipment. Their parts maintain high precision and material integrity. Therefore, your repair performs like the original factory installation. Pentair replacement components extend equipment life and increase smooth operations.
Why is it important to replace worn diffusers?
A cracked diffuser often causes low pressure, noisy priming, and fluctuating flow rates. Also, replacement parts save on the costly pump overhauls. For best results, remove debris from the impeller as you install the diffuser.
Shasta Pool Supply Difference
Shasta Pool Supply is Arizona’s most trusted pool equipment retailer. Find our reviews and advice is backed by over 50 years of Shasta Pools expertise. Customers choose us for competitive pricing, fast shipping, and guidance from real pool professionals.
Shasta Pool Supply has a wide selection of parts available. Click parts to browse more.
How does the Pentair 350090 Locking Ring compare to generic pump lid rings?
Genuine Pentair locking rings use reinforced composite materials that withstand pump pressure and outdoor exposure better than many off-brand alternatives. Furthermore, the factory fit eliminates guesswork, preventing leaks caused by mismatched threads or incorrect sizing. Also, ShastaPoolSupply.com recommends OEM replacement parts for dependable sealing and easier long-term maintenance.
Pro Tip: If your lid feels difficult to tighten or loosens under pressure, replace both the locking ring and the lid O-ring for optimal performance.
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Chuck and Bryan are both very helpful and kind / professional. Definitely recommend to others!
Chuck and Bryan are both very helpful and kind / professional. Definitely recommend to others!
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Great product selection. Competitive pricing. Quality repair parts.
Great product selection. Competitive pricing. Quality repair parts.
Brent G
Called the Phoenix office and gentleman who assisted me was very helpful and confirmed they had what I was looking for.
Called the Phoenix office and gentleman who assisted me was very helpful and confirmed they had what I was looking for.
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FAQ
Our expert staff answers customer's most asked questions.
Is this an OEM part?
Yes this part is original, from the manufacturer, and contains a manufacturer part number.
How often should I replace my pool pump?
On average, a well-maintained pool pump can last 8 to 15 years. However, it’s essential to monitor its performance. If you notice reduced efficiency, increased noise, or frequent repairs, it may be time to consider a replacement.
How much should a pool pump cost?
The cost of a pool pump can vary significantly based on its type and specifications. For example, low-head pumps range from $250 to $1,600, medium-head pumps from $400 to $2,500, and high-head pumps can exceed $1,250 to $4,000. Single-speed pumps typically cost between $250 and $1,000. It's essential to choose a pump that fits your pool's needs and features.
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