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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. Replacement O-Ring for the Doulton ICP Candle

    Replacement O-Ring for the Doulton ICP Candle

    Fits Doulton ICP Candles Learn More
    $5.99 Retail Price:  $8.34
  2. 002045 Viqua Replacement O-Ring

    002045 Viqua Replacement O-Ring

    $2.99 Retail Price:  $5.34
  3. W2326130 Doulton Filter Housing Sump O-Ring

    W2326130 Doulton Filter Housing Sump O-Ring

    $4.99 Retail Price:  $6.89
  4. ws03x10001 GE SmartWater O-Ring

    ws03x10001 GE SmartWater O-Ring

    Fits GE SmartWater filter systems Learn More
    $10.99 Retail Price:  $12.52
  5. 151254 Pentek Filter Housing Sump O-Ring

    151254 Pentek Filter Housing Sump O-Ring

    Fits #10 and #20 Big Clear housings by Pentek and American Plumber, as well as other manufacturers Learn More
    $6.19 Retail Price:  $9.42
  6. 143339 Pentek Head Nut Gasket

    143339 Pentek Head Nut Gasket

    Fits the Pentek ST stainless steel housing Learn More
    $6.99 Retail Price:  $9.19
  7. 143216 Pentek Stainless Steel Filter Housing Sump O-Ring

    143216 Pentek Stainless Steel Filter Housing Sump O-Ring

    Fits the Pentek ST stainless steel housing Learn More
    $10.99 Retail Price:  $15.28
  8. H-118 Omnipure Filter Head O-Ring

    H-118 Omnipure Filter Head O-Ring

    Fits Omnipure Q-Series filter heads Learn More
    $2.99 Retail Price:  $5.74
  9. P2240 OmniFilter Replacement O-ring Kit

    P2240 OmniFilter Replacement Faucet Filter O-Rings

    Fits OmniFilter F1 Faucet Filter Learn More
    $9.99 Retail Price:  $11.49
  10. OK7 OmniFilter O-Ring

    OK7-S6-S06 OmniFilter O-Ring

    Fits Omni heavy-duty whole house water filtration systems Learn More
    $4.99 Retail Price:  $8.04
  11. OK25 OmniFilter O-Ring

    OK25 OmniFilter O-Ring

    Fits Omni water filtration systems Learn More
    $4.99 Retail Price:  $8.04
  12. S3069 Microline Filter Housing Sump O-Ring

    S3069 Microline Filter Housing Sump O-Ring

    Fits Microline Clack S7029 Sumps Learn More
    $2.99 Retail Price:  $5.74
  13. W2390009 Doulton Filter Housing Sump O-Ring

    W2390009 Doulton Filter Housing Sump O-Ring

    $2.99 Retail Price:  $4.43
  14. 1OR Rusco O-Ring Gasket Kit

    1OR Rusco O-Ring Gasket Kit

    Fits 1 inch Rusco systems Learn More
    $3.99 Retail Price:  $6.89
  15. OR-34 Tier1 O-Ring

    OR-34 Tier1 O-Ring

    Sized at 4 inches and fits into most standard whole house water filtration system housings Learn More
    $1.99 Retail Price:  $3.44
  16. OR-100 Tier1 Lubricated O-Ring

    OR-100 Tier1 Lubricated O-Ring

    Fits into 10 and 20 inch Big Blue water filtration system housings Learn More
    $3.99 Retail Price:  $5.74
  17. WS03X10046 GE SmartWater Filtration Housing O-Ring Kit

    WS03X10046 GE SmartWater Filtration Housing O-Ring Kit

    Fits GE SmartWater filtration housings for the GE FQSVF and GE FQSLF water filters Learn More
    $8.99 Retail Price:  $16.09
  18. EV3071-19 Everpure Water Filtration System O-Ring (4 Inch Diameter)

    EV3071-19 Everpure Water Filtration System O-Ring (4 Inch Diameter)

    For use in Series K pre-filters, scale inhibiting feeders and Kleensteam Model AR-X’s Learn More
    $5.99 Retail Price:  $9.34
  19. 2OR Rusco O-Ring Gasket Kit

    2OR Rusco O-Ring Gasket Kit

    For use with 2 inch Rusco water filtration systems Learn More
    $4.99 Retail Price:  $8.04
  20. 3M Aqua-Pure 34737-13C Water Filter Gasket

    34737-13C 3M Aqua-Pure Replacement Water Filter Gasket

    Fits the following stainless steel water filtration housings from 3M Aqua-Pure: SST1, SST1HA, SST2HB, AP1610SS and AP2610SS Learn More
    $5.99 Retail Price:  $8.04
  21. .75OR Rusco O-Ring Gasket Kit

    .75OR Rusco O-Ring Gasket Kit

    Fits all Rusco ¾-inch spin-down water filtration systems, sediment trapper systems, hot water filtration systems and chemically resistant filtration systems Learn More
    $4.99 Retail Price:  $8.04
  22. 1.5OR Rusco O-Ring Gasket Kit

    1.5OR Rusco O-Ring Gasket Kit

    Fits Rusco spin-down, sediment trapper, hot water or chemically resistant water filtration systems Learn More
    $4.99 Retail Price:  $8.04
  23. 151117 Pentek Viton Polypropylene Housing O-Ring

    151117 Pentek Viton Polypropylene Housing O-Ring

    Fits Pentek 150150, 150132, 150154, 150134, 150156, 150135, 150158 and 150141 Water Filter Housings Learn More
    $7.99 Retail Price:  $11.49
  24. WOR-FF Watts Full Flow Water Filter Housing O-Ring

    WOR-FF Watts Full Flow Water Filter Housing O-Ring

    Fits Watts #10 & #20 Full-Flow Clear & Opaque Water Filter Housings and PurePro WF-10 & WF-20 Water Filter Housings Learn More
    $4.99 Retail Price:  $8.04
  25. 1240326 Merlin Filter Housing Sump O-Ring

    1240326 Merlin Filter Housing Sump O-Ring

    Fits the GE Merlin Reverse Osmosis System Learn More
    $5.69 Retail Price:  $8.84

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