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Water Filters

Discount Filter Store carries a wide variety of water filters and filtration systems to make sure that you have clean water everywhere you need it. We offer camping water filters, RV filters, water bottles for travelers on the go. Purify your office or home’s drinking water with countertop filter systems, commercial grade filters, and whole house filter systems. Our filters are protected by our 100% Price Match Guarantee. We are happy to offer you the lowest possible price on our filters, matching any lower price listed by competitors.

952 Products found

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  1. Pentair GRO-75EN TLC Encapsulated Membrane

    Pentair GRO-75EN TLC Encapsulated Membrane

    Price $99.99
  2. Pentair GRO-50EN TLC Encapsulated Membrane

    Pentair GRO-50EN TLC Encapsulated Membrane

    Price $93.99
  3. Everpure H-300 Comparable Filter System by Tier1

    Everpure H-300 Comparable Filter System by Tier1

    Price $93.99
  4. Aqua Flo AQUA-FLO-1812-50 Reverse Osmosis Membrane Water Filter

    Aqua Flo AQUA-FLO-1812-50 Reverse Osmosis Membrane Water Filter

    Price $17.99
  5. Alkaline Water Pitcher and Alkaline Pitcher Replacement Filters (3-Pack) Kit by Tier1

    Alkaline Water Pitcher and Alkaline Pitcher Replacement Filters (3-Pack) Kit by Tier1

    Price $36.99
  6. Doulton W9361123/British Berkefeld W9361151 Stainless Steel Gravity System with ATC Super Sterasyl Candle Filters

    Doulton W9361123/British Berkefeld W9361151 Stainless Steel Gravity System with ATC Super Sterasyl Candle Filters

    Price $174.99
  7. Kanrel Glass Water Bottle with Silicone Sleeve 20 oz - Purple

    KAN20PURP Kanrel 20 oz. Glass Water Bottle (Purple)

    Price $15.99
  8. Axeon TF-3012-500 Reverse Osmosis Membrane

    Axeon TF-3012-500 Reverse Osmosis Membrane

    Price $99.99
  9. PENTEK-CFB-30 Carbon Block Replacement Filter Cartridge

    PENTEK-CFB-30 Carbon Block Replacement Filter Cartridge

    Price $26.99
  10. P1 Pentek Comparable Whole House Sediment Water Filter by Tier1

    P1 Pentek Comparable Whole House Sediment Water Filter by Tier1

    Price $6.99
  11. Q5533 Omnipure Undersink Replacement Water Filter

    Q5533 Omnipure Undersink Replacement Water Filter

    Price $21.99
  12. SWC-25-2010 Hydronix Sediment Replacement Filter

    SWC-25-2010 Hydronix Sediment Replacement Filter

    Price $16.99

952 Products found

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Shopping Options
Category
  1. Undersink Water Filters & Systems 101 item
  2. Inline Water Filters 118 item
  3. Reverse Osmosis Water Filter Replacement Cartridges and Kits 154 item
  4. Commercial Grade Water Filters & Systems 240 item
  5. Countertop Water Filter Systems 22 item
  6. Water Filter Pitchers & Dispensers 32 item
  7. Camping Water Filters & Systems 31 item
  8. Shower Water Filters & Filter Systems 63 item
  9. Household Filters 70 item
Brand
  1. 3M 9 item
  2. American Hydro Systems 1 item
  3. American Plumber 11 item
  4. Aqua Flo 1 item
  5. Aquamira 1 item
  6. Aquapatrol 1 item
  7. Aqua-Pure 7 item
  8. Aries 7 item
  9. Axeon 3 item
  10. BevGuard 6 item
  11. Brita 3 item
  12. Brondell 5 item
  13. Camco 1 item
  14. Clairify 2 item
  15. Claris 1 item
  16. Crystal Quest 45 item
  17. Culligan 55 item
  18. Cuno 4 item
  19. Daewoo 1 item
  20. Desal 2 item
  21. Doulton 36 item
  22. DuPont 20 item
  23. Everpure 38 item
  24. Filtrete 5 item
  25. Flojet 1 item
  26. GE 11 item
  27. H2O International 2 item
  28. Halsey Taylor 1 item
  29. Harmsco 15 item
  30. Honeywell 4 item
  31. Hoshizaki 1 item
  32. Hydrologic 16 item
  33. Hydronix 27 item
  34. Hydrotech 13 item
  35. Hytrex 15 item
  36. Ice-O-Matic 3 item
  37. Inline Water Filters 3 item
  38. Insinkerator 1 item
  39. Kanrel 1 item
  40. Katadyn 14 item
  41. Klean Kanteen 6 item
  42. KX Matrikx 3 item
  43. Liquatec 1 item
  44. Manitowoc 3 item
  45. GE Merlin 5 item
  46. Microline 5 item
  47. OmniFilter 4 item
  48. Omnipure 105 item
  49. Pentair 4 item
  50. Pentek 126 item
  51. PetSafe 1 item
  52. Pioneer 2 item
  53. PuROLine 1 item
  54. PuROTwist 5 item
  55. Purtrex 13 item
  56. QMP 1 item
  57. Rainshow'r 12 item
  58. Rusco 21 item
  59. Seychelle 12 item
  60. Sprite 23 item
  61. SteriPEN 3 item
  62. Tier1 139 item
  63. Valueline 1 item
  64. Viqua 47 item
  65. Water Factory Systems 3 item
  66. Water Sentinel 3 item
  67. Watts 12 item
  68. Whirlpool 6 item
  69. ZeroWater 13 item
Primary Filter Media
  1. Activated Carbon Block 137 item
  2. Activated Carbon w Ion Exchange Resin 1 item
  3. Anion Resin 1 item
  4. Arsenic Selective Resin 1 item
  5. Carbon Block 9 item
  6. Carbon Wrapped 11 item
  7. Carbon-Impregnated Fabric 2 item
  8. Ceramic with Carbon 13 item
  9. Eagle Redox Alloy 1 item
  10. Fine Mesh Pre-Resin Fluoride Removal Media 1 item
  11. Granular Activated Carbon 136 item
  12. Hexametaphosphate Crystals 1 item
  13. Ion Exchange Resin 26 item
  14. Nylon Monofilament 1 item
  15. Nylon Monofilament Mesh 6 item
  16. Permanganate Treated Zeolite 1 item
  17. Phosphate Crystal 3 item
  18. Pleated Fabric 6 item
  19. Pleated Polyester 10 item
  20. Polyester 14 item
  21. Polypropylene 115 item
  22. Scale Reduction media 6 item
  23. Semi-Permeable Membrane 27 item
  24. Sintered Ceramic 14 item
  25. Stainless Steel 9 item
Price
  1. $0.00 - $999.99 939 item
  2. $1,000.00 - $1,999.99 14 item
  3. $2,000.00 - $2,999.99 1 item
  4. $3,000.00 - $3,999.99 1 item
  5. $7,000.00 and above 1 item
Fitting Type
  1. Compression 3 item
  2. FNPT 23 item
  3. FPT 46 item
  4. GHT 3 item
  5. MNPT 3 item
  6. MPT 16 item
  7. NPT 54 item
  8. Push-fit 1 item
  9. Push In 6 item
  10. Quick-Change 7 item
  11. Quick Connect 63 item
Fitting Size (inches)
  1. 1/8 inch 3 item
  2. 1/4 inch 96 item
  3. 3/8 inch 52 item
  4. 1/2 inch 16 item
  5. 3/4 inch 35 item
  6. 1 inch 20 item
  7. 1-1/16 inches 3 item
  8. 1-1/2 inches 13 item
  9. 2 inches 11 item
Advertised Size (in)
  1. 5 x 2-1/2 10 item
  2. 6 x 2-1/2 3 item
  3. 6 x 3 2 item
  4. 7 x 2 1 item
  5. 8 x 2-1/2 6 item
  6. 8 x 4-1/4 1 item
  7. 9-3/4 x 2-1/2 1 item
  8. 9-3/4 x 2-3/4 3 item
  9. 10 x 2 6 item
  10. 10 x 2-1/4 1 item
  11. 10 x 2-1/2 99 item
  12. 10 x 3-1/2 2 item
  13. 10 x 4-1/2 27 item
  14. 10 x 5 1 item
  15. 10-1/4 x 2-1/2 2 item
  16. 10-5/16 x 2-1/8 1 item
  17. 10-1/2 x 2-3/4 1 item
  18. 10-3/4 x 2-3/4 1 item
  19. 12 x 2-1/2 22 item
  20. 12-1/32 x 4-5/32 1 item
  21. 12 x 3-1/2 2 item
  22. 12-3/4 x 3 1 item
  23. 14 x 2-1/2 6 item
  24. 14 x 3-1/2 1 item
  25. 14 x 4 1 item
  26. 15 x 3-1/2 2 item
  27. 18 x 4 1 item
  28. 18-1/4 x 7-1/4 1 item
  29. 20 x 2-1/2 29 item
  30. 20 x 4-1/2 34 item
  31. 23 x 8 1 item
  32. 29 x 10 1 item
  33. 29-1/4 x 2-1/2 1 item
  34. 30 x 2-1/2 19 item
  35. 31-3/4 x 7-1/4 1 item
  36. 32 x 7 1 item
  37. 40 x 2-1/2 13 item
Micron Rating (Nominal)
  1. 0⋅05 86 item
  2. 0⋅1 4 item
  3. 0⋅2 10 item
  4. 0⋅3 1 item
  5. 1 87 item
  6. 2 1 item
  7. 3 4 item
  8. 5 151 item
  9. 10 38 item
  10. 15 3 item
  11. 20 15 item
  12. 25 29 item
  13. 30 13 item
  14. 40 3 item
  15. 50 17 item
  16. 75 4 item
  17. 100 6 item
  18. 200 3 item
  19. 254 1 item
  20. 400 1 item
  21. 800 2 item
Filter Diameter (inches)
  1. 8 - 9 1 item
Filter Length (inches)
  1. 21 - 24 1 item
Pool/Spa Manufacturer
  1. Tier1 1 item
Filter Life (months)
  1. 1 month 10 item
  2. 2 months 22 item
  3. 3 months 54 item
  4. 4 months 5 item
  5. 5 months 3 item
  6. 6 months 301 item
  7. 9 months 4 item
  8. 12 months 167 item
  9. 24 months 25 item
  10. 36 months 3 item
  11. 48 months 1 item
  12. 60 months 1 item
  13. 120 months 7 item
Filter Life (gallons)
  1. 0 - 100 31 item
  2. 100 - 250 24 item
  3. 250 - 500 21 item
  4. 500 - 1,000 51 item
  5. 1,000 - 2,500 127 item
  6. 2,500 - 5,000 68 item
  7. 5,000 - 10,000 27 item
  8. 10,000 - 13,000 3 item
  9. 10,000 - 25,000 75 item
  10. 25,000 - 50,000 16 item
  11. 50,000 and up 10 item