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YUB21405 Unloader Blue Spring

Marsoni M251S
Sale price$167.71
Pay 4 payments of $41.93 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
YUB21405 Unloader Blue SpringFEATURES: NEW improved design, trapped pressure unloader Reduced pressure loss Extremely reliable Easy maintenance SPECIFICATIONS: Maximum volume: 21 GPM Maximum pressure: 4500 PSI Maximum temperature: 195F. The valve is designed for continuous use at a water temperature of 140F. It can operate for short periods at a maximum temperature of 195F. Inlet: Dual 1 2" FPT Discharge: 1 2" FPT Bypass: 1 2" FPT
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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]
  • Please click here for more details>>> Return & Exchange Policy
4.2 ★★★★★
Based on 1188 reviews
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Product Reviews
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Verified Purchase
WER
Boise, US
★★★★★ 5
Happy with purchase
Works as well at the fraction of the price. Very happy with the purchase. Very easy to install
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 11, 2025
A
Verified Purchase
Amazon Customer
West Palm Beach, US
★★★★★ 5
Great OEM replacement at hlaf the cost
Looks exactly like the OEM filter a quality product. it is the same size fit and performance. Filter replacement is fast 10 min tops, it's crazy how much a dealer charges to replace it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 15, 2025
E
Verified Purchase
Elliot
New York, US
★★★★★ 5
As good as Honda OEM
Perfect fit. Lasts as long as OEM for 25% of the price.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 27, 2025
F
Verified Purchase
Fatman
Birmingham, US
★★★★★ 5
Great fit
Perfect fit. FYI - I bought the exact same one on EBAY FOR $11.78
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Reviewed in the United States on May 2, 2026
A
Verified Purchase
Amazon Customer
Lowell, US
★★★★★ 5
East
Easy to replace and great fit
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 4, 2026

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