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Replacement Filters by Size

DiscountFilterStore offers a wide variety of filters in various sizes. Whether you need a large 20 x 4.5 inch filter for your whole home needs or a 10 x 2.5 inch filter for a point of use system like an countertop system or undersink system you will be sure to find the replacement filter in the size you need.

You can also shop for your whole house replacement filter by filter media from our Replacement Filters By Media page.

If you need help finding the filter right for your home, give our water experts a call at 1-800-277-3458 and we'll help find the perfect replacement filter for you.

310 Products found

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  1. 20 inch x 4.5 inch Comparable String Wound Sediment Water Filter by Tier1 (20 micron)

    20 inch x 4.5 inch Comparable String Wound Sediment Water Filter by Tier1 (20 micron)

    Price $25.99 List Price Price $37.99 Save 31%
  2. SPC-25-2020 Hydronix Comparable Pleated Sediment Water Filter by Tier1

    SPC-25-2020 Hydronix Comparable Pleated Sediment Water Filter by Tier1

    Price $19.99 List Price Price $28.99 Save 31%
  3. P1 Pentek Comparable Whole House Sediment Water Filter by Tier1

    P1 Pentek Comparable Whole House Sediment Water Filter by Tier1

    Price $6.99 List Price Price $9.99 Save 30%
  4. CB-25-2005 Hydronix Polypropylene Replacement Water Filter

    CB-25-2005 Hydronix Polypropylene Replacement Water Filter

    Price $20.99 List Price Price $29.99 Save 30%
  5. P5 Pentek Comparable Whole House Replacement Sediment Filter Cartridge by Tier1

    P5 Pentek Comparable Whole House Replacement Sediment Filter Cartridge by Tier1

    Price $5.99 List Price Price $8.99 Save 33%
  6. DGD-2501 Pentek Comparable Whole House Sediment Water Filter by Tier1

    10 inch x 4.5 inch Whole House Sediment Water Filter by Tier1 (1 Micron)

    Price $13.99 List Price Price $19.99 Save 30%
  7. R30BB Pentek Comparable Whole House Water Filter by Tier1

    R30BB Pentek Comparable Whole House Water Filter by Tier1

    Price $14.99 List Price Price $21.99 Save 31%
  8. EP-10 Pentek Comparable Whole House Water Filter by Tier1

    EP-10 Pentek Comparable Whole House Water Filter by Tier1

    Price $12.99 List Price Price $18.99 Save 31%
  9. Iron and Manganese Reducing Tier1 Replacement Water Filter

    Iron and Manganese Reducing Replacement Water Filter by Tier1

    Price $48.99 List Price Price $69.99 Save 30%
    Free Shipping
  10. CW-MF Culligan 30 Micron Polypropylene Wound Replacement Filter

    CW-MF Culligan 30 Micron Polypropylene Wound Replacement Filter

    Price $12.99 List Price Price $18.99 Save 31%
  11. CW25-BBS Culligan 25 Micron Polypropylene Wound Replacement Filter

    CW25-BBS Culligan 25 Micron Polypropylene Wound Replacement Filter

    Price $21.99 List Price Price $31.99 Save 31%
  12. CW5-BBS Culligan 5 Micron Polypropylene Wound Replacement Filter

    CW5-BBS Culligan 5 Micron Polypropylene Wound Replacement Filter

    Price $25.99 List Price Price $36.99 Save 29%

310 Products found

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Shop By
Shopping Options
Category
  1. 10 x 2.5 Inch Replacement Filters 134 item
  2. 10 x 4.5 Inch Replacement Filters 62 item
  3. 20 x 2.5 Inch Replacement Filters 48 item
  4. 20 x 4.5 Inch Replacement Filters 67 item
Brand
  1. American Plumber 14 item
  2. Aqua-Pure 14 item
  3. Aries 2 item
  4. Crystal Quest 8 item
  5. Culligan 16 item
  6. Cuno 2 item
  7. Doulton 2 item
  8. DuPont 1 item
  9. Filtrete 4 item
  10. Filtrex 1 item
  11. GE 8 item
  12. Harmsco 5 item
  13. Hydrologic 4 item
  14. Hydronix 55 item
  15. Hytrex 4 item
  16. KX Matrikx 7 item
  17. OmniFilter 8 item
  18. Omnipure 3 item
  19. Pentek 68 item
  20. Purtrex 6 item
  21. Tier1 70 item
  22. Viqua 2 item
  23. Watts 6 item
Primary Filter Media
  1. Activated Carbon Block 49 item
  2. Anion Resin 1 item
  3. Carbon Block 6 item
  4. Carbon Wrapped 8 item
  5. Ceramic with Carbon 1 item
  6. Fine Mesh Pre-Resin Fluoride Removal Media 1 item
  7. Granular Activated Carbon 39 item
  8. Hexametaphosphate Crystals 1 item
  9. Ion Exchange Resin 9 item
  10. Permanganate Treated Zeolite 1 item
  11. Phosphate Crystal 1 item
  12. Pleated Cellulose 7 item
  13. Pleated Fabric 1 item
  14. Pleated Polyester 35 item
  15. Polypropylene 113 item
  16. Sintered Ceramic 1 item
Price
  1. $0.00 - $99.99 300 item
  2. $100.00 and above 10 item
Fitting Type
  1. Push In 1 item
  2. Quick Connect 1 item
Fitting Size (inches)
  1. 1/4 inch 2 item
Advertised Size (in)
  1. 9-3/4 x 2-3/4 2 item
  2. 10 x 2-1/4 1 item
  3. 10 x 2-1/2 128 item
  4. 10 x 4-1/2 59 item
  5. 10 x 5 3 item
  6. 20 x 2-1/2 48 item
  7. 20 x 4-1/2 68 item
Micron Rating (Nominal)
  1. 0.5 32 item
  2. 0⋅6 1 item
  3. 1 42 item
  4. 5 89 item
  5. 10 32 item
  6. 20 33 item
  7. 25 23 item
  8. 30 23 item
  9. 40 1 item
  10. 50 23 item
  11. 75 1 item
  12. 100 3 item
Filter Life (months)
  1. 2 months 11 item
  2. 3 months 50 item
  3. 4 months 8 item
  4. 5 months 2 item
  5. 6 months 206 item
  6. 12 months 12 item
  7. 24 months 1 item
Filter Life (gallons)
  1. 100 - 250 1 item
  2. 250 - 500 3 item
  3. 500 - 1,000 15 item
  4. 1,000 - 2,500 11 item
  5. 2,500 - 5,000 13 item
  6. 5,000 - 10,000 25 item
  7. 10,000 - 13,000 1 item
  8. 10,000 - 25,000 46 item
  9. 25,000 - 50,000 18 item
  10. 50,000 and up 9 item