Pentair Sand Multiport Valve, 2" Side Mount 261055
Pentair Sand Multiport Valve, 2" Side Mount 261055
When your pool filter can’t backwash properly, water clarity and circulation suffer fast. The Pentair 2" Side Mount Sand Filter Multiport Valve restores control of your filtration system by delivering smooth valve operation and sealing. It’s a go-to replacement for pool owners who want consistent performance without guesswork.
What does the Pentair 261055 multiport valve control on a sand filter?
The Pentair 261055 multiport valve directs water flow through multiple filter functions, including Filter, Backwash, Rinse, Waste, Recirculate, and Closed. Built with Pentair’s durable valve body you can be certain it will operate flawlessly in any pool setting. Buying this OEM valve from Shasta Pool Supply ensures fast shipping and competitive pricing.

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Key Features
- 2" side-mount multiport valve for Pentair sand filters
- Six-position control: Filter, Backwash, Rinse, Waste, Recirculate, Closed
- High-flow internal porting improves circulation efficiency
- Positive-lock handle prevents accidental setting changes
- Heavy-duty, chemical-resistant construction for long service life
Technical Specifications
- Manufacturer: Pentair
- Part Number: 261055
- Valve Type: Sand Filter Multiport Valve
- Mount Style: Side Mount
- Port Size: 2"
- Compatible Media: Sand filters
- Application: Residential and commercial pool systems
Specs
- Part Number: 261055
- Manufacturer: Pentair
Expert Comparison & Pro Tips
Compared to 1.5" multiport valves, the Pentair 261055 allows significantly more water to pass through with less pressure loss, making it a better match for modern, higher-horsepower pumps. Generic valves often develop handle play or internal leaks over time, while Pentair’s design maintains tighter tolerances.
Pro Tip: Always shut off the pump before changing valve positions. Rotating the handle while the pump is running can damage the spider gasket and shorten valve life.
Our Expert Verdict: Dependable Control with Professional-Grade Flow
In real-world pool service, the Pentair 261055 stands out for its smooth operation, clear valve indexing, and long-term reliability. It simplifies routine maintenance while protecting your sand filter from improper flow routing. Whether you’re replacing a cracked valve or upgrading to improve circulation, this multiport delivers consistent results season after season. When you buy from ShastaPoolSupply.com, you get fast shipping, expert guidance, and the confidence of ordering the right Pentair replacement the first time.
How does the Pentair 261055 compare to other sand filter multiport valves?
The Pentair 261055 offers higher flow capacity and better internal sealing than many standard aftermarket valves, making it especially valuable on systems with 2" plumbing. Its side-mount configuration also keeps the filter top clear, which can be helpful in tight equipment pads. For pool owners who want OEM reliability and fewer service headaches, it’s a clear upgrade over generic alternatives.
Best For: High-Flow Sand Filter Systems
The Pentair 261055 is best suited for pools with larger pumps or plumbing that benefit from 2-inch flow capacity. It’s ideal for replacing worn or leaking multiport valves on compatible Pentair sand filters, especially where backwashing performance has declined. This valve is not universal, so confirming side-mount configuration and 2" plumbing is essential before ordering.
Best for:
Pentair side-mount sand filters
Pools with 2" plumbing and higher flow rates
Straightforward valve replacement upgrades
Not ideal for:
Top-mount sand filters
DE or cartridge filter systems
Filters requiring 1.5" valves
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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.
Is installation simple?
Pentair makes it easy to install their replacement equipment, with numerous guides and videos available online.
Does this part come with any warranty?
Replacement parts do not come with a warranty, although many of our complete equipment comes with a full manufacturer warranty.
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