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

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Water Filter Adapters & Couplers

Sometimes the smallest items can have the largest impact on the quality of your water.  At Discount Filter Store, you’ll find all the small water filter adapters and couplers you need, from diverter valves, automatic shut off valves, to refrigerator water filter caps, flow restrictors, and more; everything you need to keep your water filters operating at maximum efficiency. 

Searching for more water filter parts & accessories, check out our huge selection of mounting brackets, pumps & motors, drinking water test kits, and more.

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  • M100 Tier1 Plastic Hex Nipple

    M100 Tier1 Plastic Hex Nipple

    $3.49
    MSRP: $6.31
    Save 45%
  • M34 Tier1 Plastic Hex Nipple

    M34 Tier1 Plastic Hex Nipple

    $2.99
    MSRP: $5.74
    Save 48%
  • PFR402Q-150 Tier1 Inline Flow Restrictor

    PFR402Q-150 Tier1 Inline Flow Restrictor

    $10.99
    MSRP: $13.79
    Save 20%
  • PFR402Q-500 Tier1 Inline Flow Restrictor

    PFR402Q-500 Tier1 Inline Flow Restrictor

    $7.99
    MSRP: $11.49
    Save 30%
  • QMP502-38 Tier1 Compression Diverter Valve

    QMP502-38 Tier1 Compression Diverter Valve

    $12.99
    MSRP: $17.24
    Save 25%
  • PI2308S Tier1 Two-Way Divider (1/4 Inch with Quick Connect Fittings)
  • CNTP-DV-14C Tier1 Diverter Valve

    CNTP-DV-14C Tier1 Diverter Valve

    $8.99
    MSRP: $13.90
    Save 35%
  • ASV-ERP-JG Tier1 Automatic Shut-Off Valve

    ASV-ERP-JG Tier1 Automatic Shut-Off Valve

    $17.99
    MSRP: $22.99
    Save 22%
  • ASV-14QW Tier1 Automatic Shut-Off Valve

    ASV-14QW Tier1 Automatic Shut-Off Valve

    $7.99
    MSRP: $11.49
    Save 30%

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