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Water Filter O-Ring Replacements

While they may seem like a trivial part of a water filter system, water filter o-rings are one of the most important pieces of your water filter system.  They prevent leaks and allow your water filter to do what it was meant to do, filter your water.  O-rings on your water filter system should be replaced every 2 filter changes to help protect your water filter system from leaks. 

Not sure, of the correct O-ring size for your water filter system, open the filter housing and measure the diameter of the existing O-ring. Still can’t figure out what size o-ring you need for your water filter system, give our experts a call, 1-800-277-3458 They’d be happy to help.  Note: the O-ring size is not related to the filter, but rather to the filter housing.

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  1. K4 OmniFilter O-Ring Set

    K4-M6-S06 OmniFilter O-Ring Set

    For use in OmniFilter water filtration systems Learn More
    $3.99 Retail Price:  $6.89
  2. O-RING-KIT-01 Filtrete Multi-Size O-Ring Kit

    O-RING-KIT-01 3M Filtrete Multi-Size O-Ring Kit

    Fits any of the 3M Filtrete water filter housings Learn More
    $4.99 Retail Price:  $8.04
  3. W2160901 Doulton Candle Mount O-ring

    W2160901 Doulton Ceramic Water Filter Candle O-Ring

    Fits all Doulton short mount ceramic water filter candles Learn More
    $3.99 Retail Price:  $5.74
  4. W2110885 Doulton OBE Washer

    W2110885 Doulton OBE Ceramic Water Filter Washer

    Fits all Doulton Slim Line and Imperial OBE ceramic water filters Learn More
    $3.99 Retail Price:  $6.89
  5. W2110880 Doulton Candle Replacement Washer

    W2110880 Doulton Ceramic Candle Filter Replacement Washer

    Fits all Doulton long mount filter candles Learn More
    $3.99 Retail Price:  $6.34
  6. OR-38 Culligan Undersink and RV Filter O-Ring

    OR-38 Culligan Undersink and RV Filter O-Ring

    Fits Culligan undersink and RV filter systems including US-550, US 560, SY-5167, and SY-5197 Learn More
    $4.99 Retail Price:  $9.19
  7. OR-34A Culligan Whole House Filter O-Ring

    OR-34A Culligan Whole House Water Filtration System O-Rings

    Fits Culligan and Ace whole house water filtration systems, including the HF-150, HF-160, HF-360, 45025, 46764 and 49560 Learn More
    $4.99 Retail Price:  $8.04
  8. OR-233 Culligan Whole House Filter O-Ring

    OR-233 Culligan Whole House Filter O-Ring

    Fits Culligan whole house filter systems including SY-2000, SY-2100, SY-2300, SY-2500, SY-2650, US-600, and US-640 Learn More
    $4.99 Retail Price:  $9.19
  9. OR-100 Culligan HD-950 O-Ring

    OR-100 Culligan HD-950 O-Ring

    Fits Culligan HD-950 whole house water filter systems Learn More
    $6.99 Retail Price:  $10.34
  10. 3M Aqua-Pure 68898-32 Whole House Filter O-Ring

    68898-32 3M Aqua-Pure Whole House Filter O-Ring

    Fits 3M Aqua-Pure whole house filter systems Learn More
    $3.99 Retail Price:  $8.96
  11. 3M Aqua-Pure 63597-174C Undersink Filter O-Ring

    63597-174C 3M Aqua-Pure Undersink Filter O-Ring

    Fits 3M Aqua-Pure undersink filter systems Learn More
    $5.99 Retail Price:  $8.15
  12. OR-237-S Pentek O-Ring

    OR-237-S Pentek O-Ring

    Fits Pentek #5 and Slim Line housings Learn More
    $8.49 Retail Price:  $12.06
  13. OR-241-B Pentek O-Ring

    OR-241-B Pentek O-Ring

    Fits into Pentek water filtration system housings #10, #12 and #20 Learn More
    $4.09 Retail Price:  $7.00
  14. OR-241-S Pentek O-Ring

    OR-241-S Pentek O-Ring

    Fits Pentek housings #10, #12 and #20 Learn More
    $9.59 Retail Price:  $13.33
  15. 34201026 Hydrotech Filter Housing Sump O-Ring

    34201026 Hydrotech Filter Housing Sump O-Ring

    Fits all Hydrotech HT & HTF models, Hydrotech 123 Series, Hydrotech 101 Series, Aquafier, and Hydrofiner systems. Learn More
    $2.99 Retail Price:  $4.59
  16. ws60x10005 GE SmartWater 0.1-Ounce Food-Grade Silicone O-Ring Lubricant

    ws60x10005 GE SmartWater O-Ring Lubricant (Food-Grade Silicone)

    For use with all brands and materials of O-rings Learn More
    $7.99 Retail Price:  $10.34
  17. ws03x10039 GE SmartWater O-Ring

    ws03x10039 GE SmartWater Filtration System O-Ring

    Designed for GE SmartWater water filtration systems Learn More
    $9.99 Retail Price:  $16.09
  18. ws03x10038 GE SmartWater O-Ring

    ws03x10038 GE SmartWater O-Ring

    Fits GE SmartWater filter systems Learn More
    $6.99 Retail Price:  $9.99
  19. ws03x10028 GE SmartWater Reverse Osmosis Filter O-Ring

    ws03x10028 GE SmartWater Reverse Osmosis Filter O-Ring

    Fits GE SmartWater filter systems Learn More
    $7.99 Retail Price:  $11.49
  20. ws03x10012 GE SmartWater Reverse Osmosis Filter O-Ring

    ws03x10012 GE SmartWater Reverse Osmosis Filter O-Ring

    Fits GE SmartWater filter systems Learn More
    $11.99 Retail Price:  $13.79
  21. OR-LUBRICANT-SM Tier1 Food-Grade Silicone O-Ring Lubricant
  22. OR-LUBRICANT-LG Tier1 Food-Grade Silicone O-Ring Lubricant
  23. AM-OR Tier1 Filter Housing Sump O-Ring

    AM-OR Tier1 Filter Housing Sump O-Ring

    Fits Am101, E84, E85, E9395 and Gen IV Amway filter systems Learn More
    $8.99 Retail Price:  $12.64
  24. OR-BB Pentek O-Ring

    OR-BB Pentek O-Ring

    Fits into Pentek Big Blue filtration system housings Learn More
    $8.99 Retail Price:  $11.49
  25. 218720100 Frigidaire PureSource / PureSourcePlus Refrigerator Filter O-Ring

    218720100 Frigidaire PureSource / PureSourcePlus Refrigerator Water Filter O-Ring

    Fits refrigerators that use PureSource and PureSourcePlus water filters Learn More
    $5.99 Retail Price:  $9.19

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