Replace your SuperFlo diffuser and restore efficiency to your pump with the Pentair 355949Z SuperFlo Diffuser. Specifically, it keeps your pump running at peak efficiency by improving water flow and protecting the impeller. Additionally, this is a OEM replacement part from the manufacturer Pentair with precise alignment and reliable quality.
What does the Pentair 355949Z Diffuser do in a SuperFlo pump?
The Pentair 355949Z Diffuser directs water smoothly into the impeller, which increases efficiency and reduces strain on the motor. As a result, it improves flow, boosts filtration quality, and helps extend pump life. Furthermore, ShastaPoolSupply.com recommends replacing a worn diffusers when reduced suction, or noisy pump operation persists.

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Key Features
- Restores proper suction by channeling water cleanly into the pump’s impeller
- Improves circulation efficiency for clearer, healthier pool water
- Reduces pump strain by ensuring balanced water flow
- Durable Pentair OEM construction for long service life
- Fast installation with precise fit for Pentair SuperFlo models
Technical Specifications
- Pump Compatibility: Pentair SuperFlo and SuperFlo TEFC models
- Material: High-strength molded polymer
- Application: Inground pool pumps
Specs
- Part Number: 355949Z
- Manufacturer: Pentair
- Length: 9.0
- Width: 9.0
- Height: 6.0
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.
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.
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.
How does the Pentair 355949Z SuperFlo Diffuser compare to non-OEM replacements?
The Pentair 355949Z provides tighter tolerances, smoother internal surfaces, and more consistent hydraulic performance than generic aftermarket diffusers. Furthermore, this means faster priming, steadier flow, and better long-term reliability. Additionally, homeowners choose OEM diffusers because they are the original part and protect pump motors from unnecessary strain.
Pro Tip: Whenever you replace the diffuser, check the pump seal and O-Rings. Replacing them at the same time prevents future leaks and saves a second disassembly.
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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.
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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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