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.

23 Products found

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  1. BPV31D Supco Bullet Piercing Valve Line Tap Valve

    Price $7.99 List Price Price $11.99 Save 33%
  2. H-300 Plastic Adapter Head and Bracket by Tier1

    Price $18.99 List Price Price $27.99 Save 32%
  3. Elbow Stem Pipe Connector by Tier1

    Price $3.99 List Price Price $5.99 Save 33%
  4. Flojet 20381-039 Quad Pair by Tier1

    Price $14.99 List Price Price $20.99 Save 28%
  5. PI0808S Tier1 1/4-Inch Stem Plug

    Price $10.99 List Price Price $15.99 Save 31%
  6. FQMC1062 Tier1 Male Connector

    Price $5.99 List Price Price $8.99 Save 33%
  7. 2260518B Whirlpool PUR Refrigerator Water Filter Cap - Black

    Price $23.99 List Price Price $34.99 Save 31%
  8. 2186494W Whirlpool Refrigerator Water Filter Cap - White

    Price $22.99 List Price Price $32.99 Save 30%
  9. ASV-14QW Tier1 Automatic Shut-Off Valve

    Price $8.99 List Price Price $12.99 Save 30%
  10. PFR402Q-150 Tier1 Inline Flow Restrictor

    Price $12.99 List Price Price $18.99 Save 31%
  11. FVK-100 Culligan Inline Water Filter Flush Valve Kit

    Price $26.99 List Price Price $38.99 Save 30%

23 Products found

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