Discount Water Filters and Air Filters at Discount Filter Store.com

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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.

46 Item(s)

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  • Replacement O-Ring for the Doulton ICP Candle

    Replacement O-Ring for the Doulton ICP Candle

    $5.99
    MSRP: $8.34
    Save 28%
  • W2390009 Doulton Filter Housing Sump O-Ring

    W2390009 Doulton Filter Housing Sump O-Ring

    $2.99
    MSRP: $4.43
    Save 33%
  • W2326130 Doulton Filter Housing Sump O-Ring

    W2326130 Doulton Filter Housing Sump O-Ring

    $4.99
    MSRP: $6.89
    Save 28%
  • 151254 Pentek Filter Housing Sump O-Ring

    151254 Pentek Filter Housing Sump O-Ring

    $6.19
    MSRP: $9.42
    Save 34%
  • 143339 Pentek Head Nut Gasket

    143339 Pentek Head Nut Gasket

    $6.99
    MSRP: $9.19
    Save 24%
  • H-118 Omnipure Filter Head O-Ring

    H-118 Omnipure Filter Head O-Ring

    $2.99
    MSRP: $5.74
    Save 48%
  • P2240 OmniFilter Replacement O-ring Kit

    P2240 OmniFilter Replacement Faucet Filter O-Rings

    $9.99
    MSRP: $11.49
    Save 13%
  • OK7 OmniFilter O-Ring

    OK7-S6-S06 OmniFilter O-Ring

    $4.99
    MSRP: $8.04
    Save 38%
  • OK25 OmniFilter O-Ring

    OK25 OmniFilter O-Ring

    $4.99
    MSRP: $8.04
    Save 38%
  • S3069 Microline Filter Housing Sump O-Ring

    S3069 Microline Filter Housing Sump O-Ring

    $2.99
    MSRP: $5.74
    Save 48%
  • 1OR Rusco O-Ring Gasket Kit

    1OR Rusco O-Ring Gasket Kit

    $3.99
    MSRP: $6.89
    Save 42%
  • WOR-FF Watts Full Flow Water Filter Housing O-Ring

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

    $4.99
    MSRP: $8.04
    Save 38%
  • 002045 Viqua Replacement O-Ring

    002045 Viqua Replacement O-Ring

    $2.99
    MSRP: $5.34
    Save 44%
  • OR-34 Tier1 O-Ring

    OR-34 Tier1 O-Ring

    $1.99
    MSRP: $3.44
    Save 42%
  • OR-100 Tier1 Lubricated O-Ring

    OR-100 Tier1 Lubricated O-Ring

    $3.99
    MSRP: $9.99
    Save 60%
  • WS03X10046 GE SmartWater Filtration Housing O-Ring Kit

    WS03X10046 GE SmartWater Filtration Housing O-Ring Kit

    $8.99
    MSRP: $16.09
    Save 44%
  • EV3071-19 Everpure Water Filtration System O-Ring (4 Inch Diameter)
  • 2OR Rusco O-Ring Gasket Kit

    2OR Rusco O-Ring Gasket Kit

    $4.99
    MSRP: $8.04
    Save 38%
  • 3M Aqua-Pure 34737-13C Water Filter Gasket

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

    $5.99
    MSRP: $8.04
    Save 25%
  • .75OR Rusco O-Ring Gasket Kit

    .75OR Rusco O-Ring Gasket Kit

    $4.99
    MSRP: $8.04
    Save 38%
  • 1.5OR Rusco O-Ring Gasket Kit

    1.5OR Rusco O-Ring Gasket Kit

    $4.99
    MSRP: $8.04
    Save 38%
  • 151117 Pentek Viton Polypropylene Housing O-Ring

    151117 Pentek Viton Polypropylene Housing O-Ring

    $7.99
    MSRP: $11.49
    Save 30%
  • 1240326 Merlin Filter Housing Sump O-Ring

    1240326 Merlin Filter Housing Sump O-Ring

    $5.69
    MSRP: $8.84
    Save 36%
  • K4 OmniFilter O-Ring Set

    K4-M6-S06 OmniFilter O-Ring Set

    $3.99
    MSRP: $6.89
    Save 42%
  • O-RING-KIT-01 Filtrete Multi-Size O-Ring Kit
  • W2160901 Doulton Candle Mount O-ring

    W2160901 Doulton Ceramic Water Filter Candle O-Ring

    $3.99
    MSRP: $5.74
    Save 30%
  • W2110885 Doulton OBE Washer

    W2110885 Doulton OBE Ceramic Water Filter Washer

    $3.99
    MSRP: $6.89
    Save 42%
  • W2110880 Doulton Candle Replacement Washer
  • OR-38 Culligan Undersink and RV Filter O-Ring

    OR-38 Culligan Undersink and RV Filter O-Ring

    $4.99
    MSRP: $9.19
    Save 46%
  • OR-34A Culligan Whole House Filter O-Ring
  • OR-233 Culligan Whole House Filter O-Ring

    OR-233 Culligan Whole House Filter O-Ring

    $4.99
    MSRP: $9.19
    Save 46%
  • OR-100 Culligan HD-950 O-Ring

    OR-100 Culligan HD-950 O-Ring

    $6.99
    MSRP: $10.34
    Save 32%
  • 3M Aqua-Pure 68898-32 Whole House Filter O-Ring

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

    $3.99
    MSRP: $8.96
    Save 55%
  • 3M Aqua-Pure 63597-174C Undersink Filter O-Ring

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

    $5.99
    MSRP: $8.15
    Save 27%
  • OR-237-S Pentek O-Ring

    OR-237-S Pentek O-Ring

    $8.49
    MSRP: $12.06
    Save 30%
  • OR-241-B Pentek O-Ring

    OR-241-B Pentek O-Ring

    $4.09
    MSRP: $7.00
    Save 42%
  • OR-241-S Pentek O-Ring

    OR-241-S Pentek O-Ring

    $9.59
    MSRP: $13.33
    Save 28%
  • 34201026 Hydrotech Filter Housing Sump O-Ring

    34201026 Hydrotech Filter Housing Sump O-Ring

    $2.99
    MSRP: $4.59
    Save 35%
  • ws60x10005 GE SmartWater 0.1-Ounce Food-Grade Silicone O-Ring Lubricant
  • ws03x10039 GE SmartWater O-Ring

    ws03x10039 GE SmartWater Filtration System O-Ring

    $9.99
    MSRP: $16.09
    Save 38%
  • ws03x10038 GE SmartWater O-Ring

    ws03x10038 GE SmartWater O-Ring

    $6.99
    MSRP: $9.99
    Save 30%
  • ws03x10028 GE SmartWater Reverse Osmosis Filter O-Ring

    ws03x10028 GE SmartWater Reverse Osmosis Filter O-Ring

    $7.99
    MSRP: $11.49
    Save 30%
  • OR-LUBRICANT-SM Tier1 Food-Grade Silicone O-Ring Lubricant
  • AM-OR Tier1 Filter Housing Sump O-Ring

    AM-OR Tier1 Filter Housing Sump O-Ring

    $8.99
    MSRP: $12.64
    Save 29%
  • OR-BB Pentek O-Ring

    OR-BB Pentek O-Ring

    $8.99
    MSRP: $11.49
    Save 22%

46 Item(s)

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