★★★★★ 5
It fits and works like it should.
Color: 86mm-for Bmw
It fits and works like it should.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 3, 2026
CMP 25831-110-100 Backwash Valve Piston Kit - Replacement for Pentair FNS Plus Filter | 263055 | SW-26-055
Marsoni
M251S
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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Your CMP 25831-110-100 Backwash Valve Piston Kit - Replacement for Pentair FNS Plus Filter | 263055 | SW-26-055 orders ship within 1-2 business days.
Delivery Options:
- Standard: 3-7 business days
- Fast: 2-3 business days
- Express: 1-2 business days
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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.
- To process your return/exchange, please contact us at [email protected]
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4.8 ★★★★★
Based on 2094 reviews
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Product Reviews
★★★★★ 5
Works perfect 2017 N55 3.0L
Color: 86mm-for Bmw
Perfect fit. Great quality. 2017 bmw x3 35i N55
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 26, 2026
★★★★★ 5
works great
Color: 86mm-for Bmw
works great, no issues. perfect for 2001 volvo v70
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 24, 2026
★★★★★ 5
Perfect fit for 2013 BMW X5 35I
Color: 86mm-for Bmw
Perfect fit for 2013 BMW X5 35I
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 8, 2026
★★★★★ 5
BMW n20
Color: 86mm-for Bmw
Did it’s job
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 5, 2026
