Welcome to WaterFilters.Net | Free Shipping on Orders Over $99* | Contact Us | 1-888-801-7873
Search
My Cart

Parts & Accessories

The water filter parts you need - all in one place!

Water filtration systems are like most systems, they can be outfitted with spare parts and accessories in order to improve their performance.  Waterfilters.net has water filter parts and accessories for all your water treatment needs. We have parts and accessories for filter housings, reverse osmosis systems, UV filters, as well as DIY water testing kits. We also have a huge selection of general parts and household items, perfect for those odds and ends that you encounter in your water treatment project.

Shop from our comprehensive list of water filter parts and accessories below. If you can’t find the parts and accessories that you are looking for, please contact our customer service department. 

360 Products found

Set Descending Direction
Page
View as Grid List
  1. Tier1 13-Point Rapid Water Lab Test Analysis - $100 System Rebate

    Tier1 13-Point Rapid Water Lab Test Analysis - $100 System Rebate

    Price $39.00 List Price Price $199.99 Save 80%
  2. PURA 44301009 Quartz Sleeve Adapter

    PURA 44301009 Quartz Sleeve Adapter

    Price $43.99 List Price Price $62.99 Save 30%
  3. Doulton W9310000 Taste Bottle - Blue

    Doulton W9310002 Taste Bottle in Blue

    Price $19.99 List Price Price $28.99 Save 31%
  4. Doulton W9310001 Taste Bottle in Black

    Doulton W9310001 Taste Bottle in Black

    Price $19.95 List Price Price $28.99 Save 31%
  5. DOULTON W9310000 Taste Bottle - Peach

    Doulton W9310000 Taste Bottle in Peach

    Price $19.99 List Price Price $28.99 Save 31%
  6. Doulton W2326055 Lid Washer

    Doulton W2326055 Lid Washer

    Price $5.99 List Price Price $9.99 Save 40%
  7. 10 Panel Water Test Kit by Tier1

    Tier1 10 Panel Water Test Kit

    Price $15.99 List Price Price $22.99 Save 30%
  8. 3/4-inch Flexible Plumbing Connector by Tier1

    Tier1 3/4-inch Flexible Plumbing Connector

    Price $10.99 List Price Price $14.99 Save 26%
  9. Tier1 Drinking Water Bottle (Glass)

    Tier1 Drinking Water Bottle (Glass)

    Price $9.99 List Price Price $13.99 Save 28%
  10. W2391085 Doulton Undersink Installation Kit for Doulton Systems

    W2391085 Doulton Undersink Installation Kit for Doulton Systems

    Price $44.99 List Price Price $63.99 Save 29%
  11. 1-40100-2-RES Seychelle Dual Filter with Reservoir

    1-40100-2-RES Seychelle Dual Filter with Reservoir

    Price $32.99 List Price Price $46.99 Save 29%
  12. Tier1 Replacement O-Ring and Lubricant Kit For Whole House Systems Using a 2.5 Inch Replacement Filter

    Tier1 Replacement O-Ring and Lubricant Kit For Whole House Systems Using a 2.5 Inch Replacement Filter

    Price $6.99 List Price Price $9.99 Save 30%

360 Products found

Set Descending Direction
Page
View as Grid List
Shop By
Shopping Options
Category
  1. Water Testing 31 item
  2. General Parts 38 item
  3. Household Items 18 item
Brand
  1. Accustar 1 item
  2. Amana 1 item
  3. American Hydro Systems 10 item
  4. American Plumber 1 item
  5. Aprilaire 1 item
  6. Aquamira 6 item
  7. Aquatec 1 item
  8. ARCHETYPE LTD 2 item
  9. Bar Keepers Friend 1 item
  10. Cerama Bryte 2 item
  11. Crystal Quest 1 item
  12. Culligan 14 item
  13. Digiflow 1 item
  14. DishFish 1 item
  15. Doulton 10 item
  16. Eastman 1 item
  17. Electrolux 1 item
  18. Everpure 5 item
  19. Filtrete 4 item
  20. Frigidaire 2 item
  21. GE 11 item
  22. Genie 1 item
  23. Geocel 1 item
  24. HM Digital 9 item
  25. Home Revolution 1 item
  26. Hydrologic 2 item
  27. Hydronix 2 item
  28. Hydrotech 4 item
  29. LanoSoft 4 item
  30. Leak Controller 2 item
  31. LG 1 item
  32. Lifesaver 1 item
  33. Magic 1 item
  34. GE Merlin 1 item
  35. Microline 1 item
  36. OmniFilter 8 item
  37. Omnipure 1 item
  38. Pentek 16 item
  39. Pro Products 59 item
  40. ProTec 1 item
  41. PURA 1 item
  42. Purtrex 3 item
  43. Rainshow'r 8 item
  44. Scotch 1 item
  45. Seychelle 4 item
  46. Spectrum 1 item
  47. Sprite 2 item
  48. Sterilight 7 item
  49. Sub-Zero 1 item
  50. Superb 5 item
  51. Tier1 77 item
  52. Viqua 35 item
  53. Water Controller 1 item
  54. Water Factory Systems 2 item
  55. WaterCheck 1 item
  56. WaterSafe 2 item
  57. WaterWorks 1 item
  58. Watts 5 item
  59. Whirlpool 9 item
Primary Filter Media
  1. Activated Carbon Block 1 item
  2. Polypropylene 4 item
Price
  1. $0.00 - $99.99 325 item
  2. $100.00 - $199.99 22 item
  3. $200.00 - $299.99 4 item
  4. $300.00 - $399.99 4 item
  5. $400.00 - $499.99 3 item
  6. $500.00 and above 3 item
Fitting Type
  1. 3 Prong 5 item
  2. 4 Prong 4 item
  3. Compression 5 item
  4. FGH 4 item
  5. FHT 4 item
  6. FIP 2 item
  7. FIP x MIP 2 item
  8. FNPT 17 item
  9. FPT 1 item
  10. MNPT 1 item
  11. MPT 1 item
  12. NPT 2 item
  13. Quick Connect 6 item
Fitting Size (inches)
  1. 1/4 inch 11 item
  2. 3/8 inch 5 item
  3. 1/2 inch 6 item
  4. 3/4 inch 10 item
  5. 1 inch 11 item
Advertised Size (in)
  1. 7-1/4 x 1-3/4 1 item
  2. 8 x 2-1/2 1 item
  3. 10 x 4-1/2 1 item
  4. 30 x 2-1/2 1 item
Micron Rating (Nominal)
  1. 0.5 1 item
  2. 1 3 item
  3. 3 1 item
  4. 5 1 item
  5. 50 1 item
  6. 75 1 item
Filter Life (months)
  1. 1 month 1 item
  2. 3 months 3 item
  3. 4 months 4 item
  4. 6 months 6 item
  5. 12 months 1 item
  6. 36 months 1 item
Filter Life (gallons)
  1. 0 - 100 2 item
  2. 100 - 250 2 item
  3. 250 - 500 1 item
  4. 1,000 - 2,500 1 item
  5. 2,500 - 5,000 1 item
  6. 5,000 - 10,000 2 item
  7. 25,000 - 50,000 1 item