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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
    $4.00 MSRP:  $8.34
  2. W2390009 Doulton Filter Housing Sump O-Ring
  3. W2326130 Doulton Filter Housing Sump O-Ring
  4. ws03x10001 GE SmartWater O-Ring

    ws03x10001 GE SmartWater O-Ring

    Fits GE SmartWater filter systems Learn More
    $11.09 MSRP:  $19.99
  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 MSRP:  $9.42
  6. 143339 Pentek Head Nut Gasket

    143339 Pentek Head Nut Gasket

    Fits the Pentek ST stainless steel housing Learn More
    $6.99 MSRP:  $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
    $11.09 MSRP:  $18.99
  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 MSRP:  $5.99
  9. P2240 OmniFilter Replacement O-ring Kit

    P2240 OmniFilter Replacement Faucet Filter O-Rings

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

    OK7-S6-S06 OmniFilter O-Ring

    Fits Omni heavy-duty whole house water filtration systems Learn More
    $4.89 MSRP:  $11.99
  11. OK25 OmniFilter O-Ring

    OK25 OmniFilter O-Ring

    Fits Omni water filtration systems Learn More
    $4.99 MSRP:  $8.04
  12. 1OR Rusco O-Ring Gasket Kit

    1OR Rusco O-Ring Gasket Kit

    Fits 1 inch Rusco systems Learn More
    $3.99 MSRP:  $6.89
  13. 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
    $4.89 MSRP:  $9.99
  14. 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
    $8.09 MSRP:  $15.99
  15. Tier1 Replacement O-Ring and Lubricant Kit For Whole House Systems Using a 2.5 Inch Replacement Filter

    Replacement O-Ring and Lubricant Kit For Whole House Systems Using a 2.5 Inch Replacement Filter By Tier1

    Fits into most standard whole house water filtration system housings Learn More

    (Retail Price: $6.99 ) $4.99

  16. Tier1 Replacement O-Ring and Lubricant Kit For Whole House Systems Using a 4.5 Inch Replacement Filter

    Replacement O-Ring and Lubricant Kit For Whole House Systems Using a 4.5 Inch Replacement Filter By Tier1

    Fits into most big blue style whole house water filtration system housings Learn More

    (Retail Price: $11.99 ) $5.99

  17. 002045 Viqua Replacement O-Ring

    002045 Viqua Replacement O-Ring

    $2.99 MSRP:  $5.34
  18. 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
    $7.99
  19. 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
    $5.99 MSRP:  $9.99
  20. 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 MSRP:  $16.09
  21. 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 MSRP:  $11.99
  22. 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 MSRP:  $8.04
  23. .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
    $4.89 MSRP:  $8.99
  24. 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
    $4.89 MSRP:  $8.99
  25. S3069 Microline Filter Housing Sump O-Ring

    S3069 Microline Filter Housing Sump O-Ring

    Fits Microline Clack S7029 Sumps Learn More
    $2.99 MSRP:  $9.99

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