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Specialty RO Filters

Specialty RO Filters

Handcrafted Specialty Filters for Reverse Osmosis Water Filtration Systems

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74 Items

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  1. 2.5" x 10" Refillable Filter - Catalytic Carbon for Chloramine and Chlorine Removal + KDF 85 for Iron, Sulfur, Rotten Egg Smell Reduction
    2.5" x 10" Refillable Filter - Catalytic Carbon for Chloramine and Chlorine Removal + KDF 85 for Iron, Sulfur, Rotten Egg Smell Reduction
    Special Price $37.99 Regular Price $44.99
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  2. 2.5" x 10" Refillable Inline Filter - Birm - for Iron and Manganese Reduction
    2.5" x 10" Refillable Inline Filter - Birm - for Iron and Manganese Reduction
    Special Price $33.99 Regular Price $39.99
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  3. 2.5" x 10" Well Water Filter Set - Catalytic Carbon/KDF85 & Birm - for Iron, Sulfur, Rotten Egg Smell Reduction
    2.5" x 10" Well Water Filter Set - Catalytic Carbon/KDF85 & Birm - for Iron, Sulfur, Rotten Egg Smell Reduction
    Special Price $59.99 Regular Price $69.99
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  4. 3 Stage - Alkaline/KDF/Carbon Mineral RO Drinking Water Filter Cartridge | 2"x10" | 1/4" FPNT
    3 Stage - Alkaline/KDF/Carbon Mineral RO Drinking Water Filter Cartridge | 2"x10" | 1/4" FPNT
    Special Price $27.75 Regular Price $29.99
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  5. 6 Stage- Inline Alkaline | KDF | Mineral pH Balancing Drinking Water Filter | 2"x 10"
    6 Stage- Inline Alkaline | KDF | Mineral pH Balancing Drinking Water Filter | 2"x 10"
    Rating:
    100%
    7 Reviews
    Special Price $43.99 Regular Price $47.99
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  6. 6 Stage- Inline Alkaline | KDF | Mineral pH Balancing Drinking Water Filter | 2"x 10" - Replacement
    6 Stage- Inline Alkaline | KDF | Mineral pH Balancing Drinking Water Filter | 2"x 10" - Replacement
    Special Price $39.99 Regular Price $43.99
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  7. 6 Stage- Inline Alkaline | KDF | Mineral pH Balancing Drinking Water Filter | 2.5"x 12"
    6 Stage- Inline Alkaline | KDF | Mineral pH Balancing Drinking Water Filter | 2.5"x 12"
    Rating:
    100%
    2 Reviews
    Special Price $68.99 Regular Price $75.99
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  8. 6 Stage- Inline Alkaline | KDF | Mineral pH Balancing Drinking Water Filter | 2.5"x 12" - Replacement
    6 Stage- Inline Alkaline | KDF | Mineral pH Balancing Drinking Water Filter | 2.5"x 12" - Replacement
    Special Price $65.99 Regular Price $72.99
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  9. Activated Alumina: Arsenic Removal Water Filter for Drinking Water Filtration Systems
    Activated Alumina: Arsenic Removal Water Filter for Drinking Water Filtration Systems
    Special Price $34.99 Regular Price $39.99
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  10. Activated Alumina: Fluoride Removal Water Filter for Drinking Water Filtration Systems
    Activated Alumina: Fluoride Removal Water Filter for Drinking Water Filtration Systems
    Special Price $34.99 Regular Price $39.99
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  11. Activated Alumina: Fluoride Removal Water Inline Filter for Drinking Water Filtration Systems
    Activated Alumina: Fluoride Removal Water Inline Filter for Drinking Water Filtration Systems
    $32.00
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  12. Add-ON Filter Kit: 2 Elbow Fittings, 2 Clips and Tubing
    Add-ON Filter Kit: 2 Elbow Fittings, 2 Clips and Tubing
    Special Price $12.99 Regular Price $15.99
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  13. ADD-ON TO ANY FILTER SET: Resintech MBD-30 Color Changing - Indicating DI Resin (Deionizing) - 1.25 Pounds
    ADD-ON TO ANY FILTER SET: Resintech MBD-30 Color Changing - Indicating DI Resin (Deionizing) - 1.25 Pounds
    $14.99
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  14. Alkaline Filter Cartridge (2.5" x 9.75") - for Countertop and Under Sink Filtration | KDF 55, Carbon, Mineral Alkaline Ceramic Balls
    Alkaline Filter Cartridge (2.5" x 9.75") - for Countertop and Under Sink Filtration | KDF 55, Carbon, Mineral Alkaline Ceramic Balls
    $37.99
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  15. Anti-Scale Filter Cartridge for Standard 10" Filter Housing | 2.5" x 9.75" Slow Phos + GAC/KDF
    Anti-Scale Filter Cartridge for Standard 10" Filter Housing | 2.5" x 9.75" Slow Phos + GAC/KDF
    Special Price $47.99 Regular Price $53.99
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  16. Arsenic + Fluoride Removing Water Filter | 2.5" x 9.75" Activated Alumina + GAC
    Arsenic + Fluoride Removing Water Filter | 2.5" x 9.75" Activated Alumina + GAC
    Special Price $36.99 Regular Price $43.99
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  17. Arsenic/Fluoride/Chlorine Removing 6-Stage Water Filter | 2.5" x 9.75"
    Arsenic/Fluoride/Chlorine Removing 6-Stage Water Filter | 2.5" x 9.75"
    Special Price $37.99 Regular Price $44.99
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  18. Black 1/4" Polyethylene RO Tubing
    Black 1/4" Polyethylene RO Tubing
    $2.99
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  19. Blue 1/4" Polyethylene RO Tubing
    Blue 1/4" Polyethylene RO Tubing
    $2.99
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  20. Carbon Block & KDF 55 + GAC (2.5" x 9.75") Chlorine, Heavy Metal Filters- for 10" Countertop and Under Sink RO Filtration
    Carbon Block & KDF 55 + GAC (2.5" x 9.75") Chlorine, Heavy Metal Filters- for 10" Countertop and Under Sink RO Filtration
    Special Price $36.99 Regular Price $42.99
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  21. Carbon Block & KDF 85 + GAC (2.5" x 9.75") Iron, Sulfur Removing Filters- for 10" Countertop and Under Sink RO Filtration
    Carbon Block & KDF 85 + GAC (2.5" x 9.75") Iron, Sulfur Removing Filters- for 10" Countertop and Under Sink RO Filtration
    Special Price $36.99 Regular Price $42.99
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  22. Catalytic Carbon + KDF 55 Drinking Water Inline Filter for Reverse Osmosis Systems | 2"x10" | 1/4" FPNT
    Catalytic Carbon + KDF 55 Drinking Water Inline Filter for Reverse Osmosis Systems | 2"x10" | 1/4" FPNT
    Special Price $29.99 Regular Price $34.99
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  23. Catalytic Carbon + KDF 55 Drinking Water Inline Filter for Reverse Osmosis Systems | 2.5"x12" XL | 1/4" FPNT
    Catalytic Carbon + KDF 55 Drinking Water Inline Filter for Reverse Osmosis Systems | 2.5"x12" XL | 1/4" FPNT
    Special Price $52.99 Regular Price $59.99
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  24. Catalytic Carbon Drinking Water Inline Filter for Reverse Osmosis Systems | 2"x10" | 1/4" FPNT
    Catalytic Carbon Drinking Water Inline Filter for Reverse Osmosis Systems | 2"x10" | 1/4" FPNT
    Special Price $26.99 Regular Price $33.99
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  25. Catalytic Carbon Drinking Water Inline Filter for Reverse Osmosis Systems | 2.5"x12" XL | 1/4" FPNT
    Catalytic Carbon Drinking Water Inline Filter for Reverse Osmosis Systems | 2.5"x12" XL | 1/4" FPNT
    Special Price $41.99 Regular Price $51.99
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  26. Coconut Shell Carbon + KDF 55 Drinking Water Inline Filter for Reverse Osmosis Systems | 2"x10" | 1/4" FPNT
    Coconut Shell Carbon + KDF 55 Drinking Water Inline Filter for Reverse Osmosis Systems | 2"x10" | 1/4" FPNT
    Special Price $26.99 Regular Price $32.99
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  27. Coconut Shell Carbon + KDF 55 Drinking Water Inline Filter for Reverse Osmosis Systems | 2.5"x12" | 1/4" FPNT
    Coconut Shell Carbon + KDF 55 Drinking Water Inline Filter for Reverse Osmosis Systems | 2.5"x12" | 1/4" FPNT
    $46.99
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  28. Compatible Replacement Filter Set for Hydrologic Stealth RO Systems: HLKDF10 / 741646 / 22105 or 22125
    Compatible Replacement Filter Set for Hydrologic Stealth RO Systems: HLKDF10 / 741646 / 22105 or 22125
    Special Price $47.99 Regular Price $54.99
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  29. Culligan AC 30 RO Membrane Filter for Culligan AC-30 Reverse Osmosis Systems
    Culligan AC 30 RO Membrane Filter for Culligan AC-30 Reverse Osmosis Systems
    Special Price $19.99 Regular Price $29.99
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  30. Culligan RO Carbon Block Filter for Culligan AC-30 Reverse Osmosis Systems
    Culligan RO Carbon Block Filter for Culligan AC-30 Reverse Osmosis Systems
    $12.99
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  31. Culligan RO Filter Set + Membrane for Culligan AC-30 Reverse Osmosis Systems 10" Post Carbon
    Culligan RO Filter Set + Membrane for Culligan AC-30 Reverse Osmosis Systems 10" Post Carbon
    Special Price $39.99 Regular Price $47.00
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  32. Culligan RO Filter Set With Membrane for Culligan AC-30 Reverse Osmosis Systems 4 Set
    Culligan RO Filter Set With Membrane for Culligan AC-30 Reverse Osmosis Systems 4 Set
    Special Price $37.99 Regular Price $45.99
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  33. Culligan RO Inline Post Polishing Carbon Filter with 3/8" Quick Connections for Culligan AC-30 Reverse Osmosis Systems
    Culligan RO Inline Post Polishing Carbon Filter with 3/8" Quick Connections for Culligan AC-30 Reverse Osmosis Systems
    $9.99
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  34. Culligan RO Replacement Filter Set With Membrane for Culligan AC-30 Reverse Osmosis System
    Culligan RO Replacement Filter Set With Membrane for Culligan AC-30 Reverse Osmosis System
    $35.00
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  35. Culligan RO Sediment Filter for Culligan AC-30 Reverse Osmosis Systems
    Culligan RO Sediment Filter for Culligan AC-30 Reverse Osmosis Systems
    $9.99
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  36. DUAL BIG/SMALL CLIP CLAMP to connect Membrane Housing and Post Filter 2.5" x 2" (Pack of 2)
    DUAL BIG/SMALL CLIP CLAMP to connect Membrane Housing and Post Filter 2.5" x 2" (Pack of 2)
    Special Price $6.49 Regular Price $8.00
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  37. Dual Carbon (GAC) & Slow Phos Filter Cartridge for RO & Whole House Systems | 2.5"x10"
    Dual Carbon (GAC) & Slow Phos Filter Cartridge for RO & Whole House Systems | 2.5"x10"
    Special Price $36.99 Regular Price $39.99
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  38. Dual Carbon (GAC) & Slow Phos Inline Filter Cartridge for RO Systems | 2"x10" | 1/4" FPNT
    Dual Carbon (GAC) & Slow Phos Inline Filter Cartridge for RO Systems | 2"x10" | 1/4" FPNT
    Special Price $26.99 Regular Price $29.99
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  39. Dual Post Carbon (GAC) & pH Alkaline Water Inline Filter Cartridge for RO Systems | 2"x10" | 1/4 FPNT
    Dual Post Carbon (GAC) & pH Alkaline Water Inline Filter Cartridge for RO Systems | 2"x10" | 1/4 FPNT
    $26.99
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  40. Dual Post Carbon (GAC) & pH Alkaline Water Inline Filter Cartridge for RO Systems | 2.5"x12" | 1/4 FPNT
    Dual Post Carbon (GAC) & pH Alkaline Water Inline Filter Cartridge for RO Systems | 2.5"x12" | 1/4 FPNT
    $38.99
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  41. DUAL SMALL/SMALL CLIP CLAMP to connect 2 Inline Filters Reverse Osmosis 2"x2" (Pack of 2)
    DUAL SMALL/SMALL CLIP CLAMP to connect 2 Inline Filters Reverse Osmosis 2"x2" (Pack of 2)
    Special Price $5.99 Regular Price $7.00
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  42. Dual Stage Filter: Sediment + GAC Coconut Granular Activated Carbon Filter 2.5" x 9.75"
    Dual Stage Filter: Sediment + GAC Coconut Granular Activated Carbon Filter 2.5" x 9.75"
    Special Price $17.49 Regular Price $19.99
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  43. Hydro Logic Stealth RO100 Compatible Three Filter Pack - 100 GPD RO Membrane, Carbon, Sediment Filter for Hydrologic Systems
    Hydro Logic Stealth RO100 Compatible Three Filter Pack - 100 GPD RO Membrane, Carbon, Sediment Filter for Hydrologic Systems
    Special Price $35.99 Regular Price $44.99
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  44. Hydro Logic Stealth RO150 Compatible Three Filter Pack - 150 GPD RO Membrane, Carbon, Sediment Filter for Hydrologic Systems
    Hydro Logic Stealth RO150 Compatible Three Filter Pack - 150 GPD RO Membrane, Carbon, Sediment Filter for Hydrologic Systems
    Special Price $59.99 Regular Price $69.99
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  45. Hydro Logic Stealth RO300 Compatible Three Filter Pack - (2) 150 GPD RO Membranes, Carbon, Sediment Filter for Hydrologic Systems
    Hydro Logic Stealth RO300 Compatible Three Filter Pack - (2) 150 GPD RO Membranes, Carbon, Sediment Filter for Hydrologic Systems
    Special Price $99.99 Regular Price $119.99
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  46. Hydro-Logic 22110 10-Inch by 2.5-Inch Stealth RO/Small Boy Carbon Filter Green Coconut Shell Carbon - 5 Micron | 2.5" x 10" Hydrologic
    Hydro-Logic 22110 10-Inch by 2.5-Inch Stealth RO/Small Boy Carbon Filter Green Coconut Shell Carbon - 5 Micron | 2.5" x 10" Hydrologic
    $19.99
    Out of stock
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  47. Hydro-logic HydrologicTM Stealth Compatible Membrane, 100 GPD
    Hydro-logic HydrologicTM Stealth Compatible Membrane, 100 GPD
    Special Price $32.99 Regular Price $39.99
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  48. Hydro-logic HydrologicTM Stealth Compatible Membrane, 150 GPD
    Hydro-logic HydrologicTM Stealth Compatible Membrane, 150 GPD
    Special Price $51.99 Regular Price $64.99
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  49. Hydro-Logic Purification Systems Hydrologic Stealth-RO Compatible DI - Cartridge - Color Changing - Translucent housing 22016 Hydroponic Water Filtration for Gardening
    Hydro-Logic Purification Systems Hydrologic Stealth-RO Compatible DI - Cartridge - Color Changing - Translucent housing 22016 Hydroponic Water Filtration for Gardening
    Special Price $33.99 Regular Price $38.99
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  50. HydroLogic 10-Inch by 2.5-Inch Stealth-RO100/200 Compatible Cleanable Sediment Filter
    HydroLogic 10-Inch by 2.5-Inch Stealth-RO100/200 Compatible Cleanable Sediment Filter
    Special Price $14.99 Regular Price $19.99 As low as $12.50
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  51. HydroLogic Stealth-RO or smallBoy KDF/Catalytic Carbon Filter Compatible HL 22060
    HydroLogic Stealth-RO or smallBoy KDF/Catalytic Carbon Filter Compatible HL 22060
    Special Price $37.99 Regular Price $43.99
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  52. HydroLogic TALLBoy KDF85/Catalytic Carbon Compatible Filter
    HydroLogic TALLBoy KDF85/Catalytic Carbon Compatible Filter
    Special Price $64.99 Regular Price $71.99
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  53. KDF 55 + GAC (2.5" x 9.75") Chlorine, Heavy Metal Filter- for 10" Countertop and Under Sink RO Filtration
    KDF 55 + GAC (2.5" x 9.75") Chlorine, Heavy Metal Filter- for 10" Countertop and Under Sink RO Filtration
    Special Price $28.99 Regular Price $34.99
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  54. KDF 85 + GAC (2.5" x 9.75") Iron Filter- for 10" Countertop and Under Sink RO Filtration | HydroLogic HLKDF10 Replacement Carbon Filter Hydro-Logic
    KDF 85 + GAC (2.5" x 9.75") Iron Filter- for 10" Countertop and Under Sink RO Filtration | HydroLogic HLKDF10 Replacement Carbon Filter Hydro-Logic
    Special Price $29.99 Regular Price $34.99
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  55. Male Elbow 1/4" x 1/4" Fitting Connection Part for Water Filters/Reverse Osmosis RO Systems (Pack of 2)
    Male Elbow 1/4" x 1/4" Fitting Connection Part for Water Filters/Reverse Osmosis RO Systems (Pack of 2)
    $5.99
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  56. Male Straight 1/4" x 1/4" Fitting Connection Part for Water Filters/Reverse Osmosis RO Systems (Pack of 2)
    Male Straight 1/4" x 1/4" Fitting Connection Part for Water Filters/Reverse Osmosis RO Systems (Pack of 2)
    $5.99
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  57. Mixed Bed DI Resin Deionization Replacement Drop-in Cartridge Filter (2.5"x 10") - Color Changing MBD-30 DI
    Mixed Bed DI Resin Deionization Replacement Drop-in Cartridge Filter (2.5"x 10") - Color Changing MBD-30 DI
    Special Price $22.99 Regular Price $26.99
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  58. Mixed Bed DI Resin Deionization Replacement Inline Filter (2"x 10") - Color Changing MBD-30 DI Resin
    Mixed Bed DI Resin Deionization Replacement Inline Filter (2"x 10") - Color Changing MBD-30 DI Resin
    Special Price $20.99 Regular Price $25.99
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  59. Mixed Bed DI Resin Deionization Replacement XL Inline Filter (2.5"x 12") - Color Changing MBD-30
    Mixed Bed DI Resin Deionization Replacement XL Inline Filter (2.5"x 12") - Color Changing MBD-30
    Special Price $34.99 Regular Price $39.99
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  60. PACK OF 2: Membrane Housing Clips (2.5-Inch Diameter)
    PACK OF 2: Membrane Housing Clips (2.5-Inch Diameter)
    Special Price $8.99 Regular Price $10.99
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  61. pH Alkaline Mineral Drinking Water Filter Inline for Reverse Osmosis RO Systems | 2" x 10"
    pH Alkaline Mineral Drinking Water Filter Inline for Reverse Osmosis RO Systems | 2" x 10"
    Special Price $25.99 Regular Price $27.99
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  62. pH Alkaline Mineral Drinking Water Filter Inline for Reverse Osmosis RO Systems | 2.5" x 12"
    pH Alkaline Mineral Drinking Water Filter Inline for Reverse Osmosis RO Systems | 2.5" x 12"
    Special Price $35.99 Regular Price $37.99
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  63. Portable Aquarium Heavy Duty XL RODI Reverse Osmosis Replacement Filter + DI Resin Set
    Portable Aquarium Heavy Duty XL RODI Reverse Osmosis Replacement Filter + DI Resin Set
    $46.00
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  64. Portable Aquarium RODI Reverse Osmosis Replacement Filter + DI Resin Set
    Portable Aquarium RODI Reverse Osmosis Replacement Filter + DI Resin Set
    $27.99
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  65. Red 1/4" Polyethylene RO Tubing
    Red 1/4" Polyethylene RO Tubing
    $2.99
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  66. Replacement Cap for Clear Inline Filter Cartridges
    Replacement Cap for Clear Inline Filter Cartridges
    Special Price $3.99 Regular Price $5.99
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  67. Replacement Filters for Culligan AC-30 Reverse Osmosis Filtration Systems: 3/8" Quick Connect
    Replacement Filters for Culligan AC-30 Reverse Osmosis Filtration Systems: 3/8" Quick Connect
    Special Price $28.00 Regular Price $32.00
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  68. Replacement Water Filter Set: Carbon Block | Fluoride Reducing Filter | Alkaline Filter (3 PC) Set
    Replacement Water Filter Set: Carbon Block | Fluoride Reducing Filter | Alkaline Filter (3 PC) Set
    Special Price $75.00 Regular Price $85.00
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  69. Replacement Water Filter Set: Fluoride/Arsenic Removal, Carbon Block, GAC
    Replacement Water Filter Set: Fluoride/Arsenic Removal, Carbon Block, GAC
    $75.00
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  70. Replacement Water Filter Set: for Fluoride, Chlorine, and Heavy Metal Removal
    Replacement Water Filter Set: for Fluoride, Chlorine, and Heavy Metal Removal
    Special Price $75.00 Regular Price $85.00
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  71. Replacement Water Filter: Strong Base Anion - Nitrate Reduction Cartridge (2.75" x 9.75")
    Replacement Water Filter: Strong Base Anion - Nitrate Reduction Cartridge (2.75" x 9.75")
    Special Price $35.99 Regular Price $42.99
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  72. Replacement Water Filter: Strong Base Anion - Nitrate Reduction Inline Cartridge (2" x 10")
    Replacement Water Filter: Strong Base Anion - Nitrate Reduction Inline Cartridge (2" x 10")
    $36.99
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  73. Ultraviolet UV Sterilizer Kit for Water Filter Systems
    Ultraviolet UV Sterilizer Kit for Water Filter Systems
    Special Price $85.99 Regular Price $99.99
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  74. White 1/4" Polyethylene RO Tubing
    White 1/4" Polyethylene RO Tubing
    $2.99
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