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CMP 25831-110-100 Backwash Valve Piston Kit - Replacement for Pentair FNS Plus Filter | 263055 | SW-26-055
CMP 25831-110-100 Backwash Valve Piston Kit - Replacement for Pentair FNS Plus Filter | 263055 | SW-26-055
CMP 25831-110-100 Backwash Valve Piston Kit - Replacement for Pentair FNS Plus Filter | 263055 | SW-26-055
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CMP 25831-110-100 Backwash Valve Piston Kit - Replacement for Pentair FNS Plus Filter | 263055 | SW-26-055

Marsoni M251S
Sale price$79.99
Pay 4 payments of $20.00 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
CMP 25831-110-100 Backwash Valve Piston Kit - Replacement for Pentair FNS Plus Filter | 263055 | SW-26-055Get your Pentair slide valve back in working order with the CMP Backwash Valve Piston Kit 25831 110 100. This aftermarket kit serves as a direct substitute for the Pentair 263055 piston shaft assembly and is commonly paired with FNS Plus DE filters. It contains the complete piston shaft assembly needed to restore proper backwash function, ensuring water flows correctly through your filtration system during cleaning cycles. Key Benefits Drop In
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
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4.7 ★★★★★
Based on 459 reviews
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Product Reviews
K
Verified Purchase
KAMI
Phoenix, US
★★★★★ 5
Let's play
Color: red&green
My dog loves this toy and he will play it until it dies the noise is fine the material is great the pets love it easy to recharge and keep your pet busy for a long time so good I had to buy a second set
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 12, 2026
T
Verified Purchase
Triton Owner
Whiting, US
★★★★★ 3
Nice Idea But Won't Last With A Frenchie
Color: orange & blue, Color: orange & blue
My dogs loved the balls, however, withing 30 minutes, they were in pieces. Be careful because these parts can become choking hazards. Maybe they should try to make them a bit more sturdy, then I would buy again. Wish I could give them more stars because I liked them and the dogs did too.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 3, 2026
A
Verified Purchase
Amy C
Los Angeles, US
★★★★★ 4
Not a chew toy
Color: red&green
Our dogs love these! The dogs play for about a half hour then they get tired ,they pick it up by the string and toss it around , only important thing, supervise play time !!! This will break if chewed on , this is not a chew toy , put away once your dogs are done with it .
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 15, 2026
A
Verified Purchase
alea gaughan
Grantham, US
★★★★★ 2
Fits Cats not Dog size
Color: red&green
Sure these balls are cute, but most definitely not a dog size. I wouldn’t waste your money, unless you own a cat!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 7, 2026
B
Verified Purchase
Brenda Koenig
Whiting, US
★★★★★ 1
Not durable
Color: red&green
The description says for cats and dogs. My 6lb mini poodle tore it up in less than 40 minutes. The red one worked but the green one wouldnt even turn on. The indicator said it was fully charged but u plugged it in for a short time but nothing. I dont know if i can get a refund or not since the cover on the red one has been completely torn off. I dont recommend this product
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 15, 2026

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