SKU: 9367491785

OptiPure S1-20B, 252-10405, 20 inch Jumbo Sediment Filter

Sale price$1061.55 Regular price$1179.50
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Ships within 48 hours · Estimated delivery Jul 28 - Aug 2

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Description

OptiPure S1-20B, 252-10405, 20 inch Jumbo Sediment FilterS1 20B **We do not always stock this item to keep pricing competitive we ship direct from the factory. Please allow 1 2 weeks for delivery if not in stock** Part # 252 10405 The S1 20B is a 4. 5 x 20 Drop in, extra high capacity PolyTrix dual gradient density filter cartridge that reduces sediment down to 1 micron. Applications Drop in style sediment filter for OptiPure FX Systems that reduces suspended particles down to 1 micron. **FILTERS SOLD

S1-20B

**We do not always stock this item to keep pricing competitive we ship direct from the factory. Please allow 1-2 weeks for delivery if not in stock**
Part # 252-10405

The S1-20B is a 4.5” x 20” Drop-in, extra-high capacity PolyTrix dual-gradient density filter cartridge that reduces sediment down to 1 micron.


Applications

Drop-in style sediment filter for OptiPure FX Systems that reduces suspended particles down to 1 micron.

**FILTERS SOLD INDIVIDUALLY**
 
Related Part Numbers:

► Replacement Cartridge: (1) 252-10405, S120B
 
 Features and Benefits:
 
• PolyTrix gradient-density depth filtration reduces dirt, rust, and other debris as small as 1 micron to assure clean, clear water and protect solenoids, valves and other fittings against wear and plugging.
 
• Filters out larger dirt and sediment particles to extend the life of downstream sub-micron carbon filters.
 
• Generates less waste, only the drop-in cartridge is replaced. No discarding of metal or plastic quick-change filters.
 
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
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
SKU: 9367491785

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4.6 ★★★★★
Based on 26 reviews
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Verified Purchase
Sam E
Port Orchard, US
★★★★★ 5
Perfect fit and high quality.
Size: (Pack of 1)
Good product, not much to say. The product arrived quickly, looks to be of high quality construction, fit perfectly and took me only a couple of minutes to install. I love it when a product is no frills and delivers as advertised. I've used various filters from K&N before and have always had very good success with them so I will be buying more of these for sure when the time comes.
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Reviewed in the United States on November 9, 2025
J
Verified Purchase
john A.
Dallas, US
★★★★★ 5
Better than most.
Size: (Pack of 1)
Looks good, perfect fit.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2026
W
Verified Purchase
Willy Bill
Chelsea, US
★★★★★ 5
Great Filter
Size: (Pack of 1)
This fits fine. Just wish it was a little easier to change.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 26, 2026
E
Verified Purchase
em
Carnegie, US
★★★★★ 5
More power, slightly lower (8%) MPG.
Size: (Pack of 1)
Installed on a 2.0 liter Subaru Impreza. I drive up/down the I5 in california 3-4 times a year. For those that don't know there is about a 200 mile flat stretch where everyone runs at 75-85mph. With various filters (FRAM, BOSCH, Subaru OEM), I would consistently get 29.8 mpg. Once I installed the K&N, I could feel the car pulling with a bit more power, but I noticed that I was getting about 27.5 mpg. Totally worth it as the impreza is a little under powered and I don't drive many miles (6k/year) but if you are putting a lot of miles on your car, you may want to have more mpg.
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Reviewed in the United States on May 24, 2026
G
Verified Purchase
GregUPerkio
Lake Worth, US
★★★★★ 5
fits my 2013 chevy suburban 5.3 and appears to be high quality
Size: (Pack of 1)
fits my 2013 suburban perfectly. looks to be a well constructed unit.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 29, 2026

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