Large selection of replacement water filters, reverse osmosis membranes, testing kits and water filter system repair parts. From one water filter or membrane to case quantity discounts.

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Purtrex Water Filters ®

GE Osmonics ® Purtrex Sediment Replacement Water PreFilters
  1. GE Osmonics ® Purtrex PX-5-978 Sediment Replacement Water Filter # 93023
    GE Osmonics ® Purtrex PX-5-978 Sediment Water Filter # 93023
    GE Osmonics ® Purtrex PX-5-978 5 Micron Sediment Water Pre Filter. True-graded density pure polypropylene depth replacement water filter. # 93023 9 7/8" long X 2 1/2" diameter. 40 per case, sold individually. Order a case and save even more. Learn More
    $8.99 Special Price $5.99 As low as $3.99
  2. GE Osmonics ® Purtrex PX-30-978 Sediment Water Filter # 93020
    GE Osmonics ® Purtrex PX-30-978 Sediment Water Filter # 93020
    GE Osmonics ® Purtrex PX-30-978 30 Micron Sediment Water Pre Filter. True-graded density pure polypropylene depth filter. # 93020 9 7/8" long X 2 1/2" diameter. 40 per case, sold individually. Order a case and save even more. Learn More
    $8.99 Special Price $5.99 As low as $3.99
  3. Desal ® CTA-10 RO reverse osmosis membrane # 1201330 GE Osmonics Pentair
    Desal ® CTA-10 RO reverse osmosis membrane # 1201330 GE Osmonics
    Desal ® CTA-10 GE Osmonics - 10 GPD (gallons per day) CTA reverse osmosis RO membrane - standard size # 1201330 Learn More
    $69.99 Special Price $47.99 As low as $35.99
  4. Desal ® CTA-16 RO reverse osmosis membrane # 1201332 GE Osmonics Pentair
    Desal ® CTA-16 RO reverse osmosis membrane # 1201332 GE Osmonics

    Desal ® CTA-16 GE Osmonics - 16 GPD (gallons per day) CTA reverse osmosis membrane - standard size. # 1201332 - 1224433

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    $69.99 Special Price $49.99 As low as $35.99
  5. DESAL - TFM-100 RO Reverse Osmosis Membrane -1000
    Desal ® TFM-100 RO reverse osmosis membrane # 1221122 GE Osmonics Pentair
    Desal ® TFM-100 GE Osmonics - 100 GPD (gallons per day) TFC Style RO reverse osmosis membrane - Fits Standard Size Membrane Housing. # 1221122. Pentair ® / GE Osmonics ® 100 GPD Thin Film Reverse Osmosis Membrane Model # TFM-100 - Part # 1221122. Compatible replaccement for Dow Filmtec, WaterFiltersOnline.com and CSM RO Reverse Osmosis membranes. Learn More
    $89.99 Special Price $64.99 As low as $49.99
  6. DESAL - TFM-18 RO Reverse Osmosis Membrane #1220188 GE Osmonics -1000
    Desal ® TFM-18/T112-18 RO reverse osmosis membrane # 1220188 GE Osmonics
    Desal ® TFM-18 GE Osmonics - 18 GPD (gallons per day) TFC Style reverse osmosis membrane - Fits Standard Size Membrane Housing. # 1220188. Pentair ® / GE Osmonics ® 18 GPD Thin Film Reverse Osmosis Membrane Model # TFM-18 - Part # 1220188. THE DESAL TFM-18 HAS BEEN DISCONTINUED AND IS NO LONGER AVAILABLE. IF YOU ORDER THE DESAL TFM-18 YOU WILL RECEIVE THE T112-18. Learn More
    $89.99 Special Price $49.99 As low as $39.99
  7. DESAL TFM-24 RO Reverse Osmosis Membrane #1220189 GE Osmonics Pentair - 1000
    Desal ® TFM-24/Filmtec TW30-1812-24 RO reverse osmosis membrane # 1220189 GE Osmonics Pentair
    Desal ® TFM-24 GE Osmonics - 24 GPD (gallons per day) TFC Style Reverse Osmosis RO Membrane - Fits Standard Size Membrane Housing. # 1220189. Pentair ® /G E Osmonics ® 24 GPD Thin Film Reverse Osmosis Membrane Model # TFM-24 - Part # 1220189. Compatible with Dow Filmtec, WaterFiltersOnline.com and CSM RO Reverse Osmosis membranes. THE TFM-24 HAS BEEN DISCONTINUED AND IS NO LONGER AVAILABLE. IF YOU ORDER THE TFM-24 YOU WILL RECEIVE THE FILMTEC TW30-1812-24. Learn More
    $89.99 Special Price $56.99 As low as $39.99
  8. DESAL- TFM-36 RO Reverse Osmosis Membrane #1220190 GE Osmonics- 1000
    Desal ® TFM-36 RO reverse osmosis membrane # 1220190 GE Osmonics
    Desal ® TFM-36 GE Osmonics - 36 GPD (gallons per day) TFC style reverse osmosis membrane - Fits Standard Size Membrane Housing. # 1220190 Learn More
    $69.99 Special Price $47.99 As low as $35.99
  9. DESAL TFM-50 RO Reverse Osmosis Membrane #1204694 GE Osmonics - 1000
    Desal ® TFM-50 RO reverse osmosis membrane # 1204694 GE Osmonics
    Desal ® TFM-50 GE Osmonics - 50 GPD (gallons per day) TFC style reverse osmosis membrane RO - Fits Standard Size Membrane Housing. # 1204694 Learn More
    $69.99 Special Price $49.99 As low as $35.99
  10. DESAL TFM-75 RO Reverse Osmosis Membrane #1204487 -1000
    Desal ® TFM-75 RO reverse osmosis membrane # 1204487 GE Osmonics
    Desal ® TFM-75 GE Osmonics - 75 GPD (gallons per day) TFC style RO reverse osmosis membrane - Fits Standard Size Membrane Housing. # 1204487 Learn More
    $69.99 Special Price $45.99 As low as $35.99
  11. GE Osmonics ® Purtrex PX-10-20 20 Inch Sediment Water Filter # 93046
    GE Osmonics ® Purtrex PX-10-20 20 Inch Sediment Water Filter # 93046
    GE Osmonics ® Purtrex PX-10-20 # 93046 - 10 Micron 20" Sediment Water Pre Filter. True-graded density pure polypropylene depth filter. #93046 20" long X 2 1/2" diameter. 20 per case, sold individually. Order a case and save even more. Learn More
    $12.99 Special Price $8.99 As low as $4.49
  12. GE Osmonics ® Purtrex PX-10-978 Sediment Water Filter # 93022
    GE Osmonics ® Purtrex PX-10-978 Sediment Water Filter # 93022
    GE Osmonics ® Purtrex PX-10-978 10 Micron Sediment Water Pre Filter. # 93022 True-graded density pure polypropylene depth filter. #93022 9 7/8" long X 2 1/2" diameter. 40 per case, sold individually. Order a case and save even more. Learn More
    $8.99 Special Price $5.99 As low as $3.49
  13. GE Osmonics ® Purtrex PX-1-20 20 Inch Sediment Water Filter # 93125
    GE Osmonics ® Purtrex PX-1-20 20 Inch Sediment Water Filter # 93125
    GE Osmonics ® Purtrex PX-1-20 1 Micron 20" Sediment Water Pre Filter. # 93125 True-graded density pure polypropylene depth filter. #93125 20" long X 2 1/2" diameter. 20 per case, sold individually. Order a case and save even more. Learn More
    $13.99 Special Price $9.99 As low as $4.99
  14. GE Osmonics ® Purtrex PX-1-978 Sediment Water Filter # 93113
    GE Osmonics ® Purtrex PX-1-978 Sediment Water Filter # 93113
    GE Osmonics ® Purtrex PX-1-978 1 Micron Sediment Water Pre Filter. True-graded density pure polypropylene depth filter. #93113 9 7/8" long X 2 1/2" diameter. 40 per case, sold individually. Order a case and save even more. Learn More
    $9.99 Special Price $6.99 As low as $2.99
  15. GE Osmonics ® Purtrex PX-20-20 20 Micron 20 Inch Sediment Water Filter # 93045
    GE Osmonics ® Purtrex PX-20-20 20 Micron 20 Inch Sediment Water Filter # 93045
    GE Osmonics ® Purtrex PX-20-20 20 Micron 20" Sediment Water Pre Filter. True-graded density pure polypropylene depth filter. # 93045 20" long X 2 1/2" diameter. 20 per case, sold individually. Order a case and save even more. Learn More
    $13.99 Special Price $8.99 As low as $4.49
  16. GE Osmonics ® Purtrex PX-20-978 Sediment Water Filter # 93021
    GE Osmonics ® Purtrex PX-20-978 Sediment Water Filter # 93021
    GE Osmonics ® Purtrex PX-20-978 20 Micron Sediment Water Pre Filter. True-graded density pure polypropylene depth filter. # 93021 9 7/8" long X 2 1/2" diameter. 40 per case, sold individually. Order a case and save even more. Learn More
    $9.99 Special Price $5.99 As low as $2.79
  17. GE Osmonics ® Purtrex PX-30-20 20 Inch Sediment Water Filter # 93044
    GE Osmonics ® Purtrex PX-30-20 20 Inch Sediment Water Filter # 93044
    GE Osmonics ® Purtrex PX-30-20 30 Micron 20" Sediment Water Pre Filter. True-graded density pure polypropylene depth filter. # 93044 20" long X 2 1/2" diameter. 20 per case, sold individually. Order a case and save even more. Learn More
    $13.99 Special Price $8.99 As low as $4.49
  18. GE Osmonics ® Purtrex PX-3-20 20 Inch Sediment Water Filter # 93124
    GE Osmonics ® Purtrex PX-3-20 20 Inch Sediment Water Filter # 93124
    GE Osmonics ® Purtrex PX-3-20 3 Micron 20" Sediment Water Pre Filter. True-graded density pure polypropylene depth filter. # 93124 20" long X 2 1/2" diameter. 20 per case, sold individually. Order a case and save even more. Learn More
    $13.99 Special Price $8.99 As low as $4.49
  19. GE Osmonics ® Purtrex PX-3-978 Sediment Water Filter # 93112
    GE Osmonics ® Purtrex PX-3-978 Sediment Water Filter # 93112
    GE Osmonics ® Purtrex PX-3-978 3 Micron Sediment Water Pre Filter. True-graded density pure polypropylene depth filter. # 93112 9 7/8" long X 2 1/2" diameter. 40 per case, sold individually. Order a case and save even more. Learn More
    $8.99 Special Price $5.99 As low as $3.99
  20. GE Osmonics ® Purtrex PX-50-20 50 Micron 20 Inch Sediment Replacement Water Filter # 93123
    GE Osmonics ® Purtrex PX-50-20 20 Inch Sediment Water Filter # 93123
    GE Osmonics ® Purtrex PX-50-20 50 Micron 20" Sediment Water Pre Filter. True-graded density pure polypropylene depth filter. # 93123 20" long X 2 1/2" diameter. 20 per case, sold individually. Order a case and save even more. Learn More
    $13.99 Special Price $8.99 As low as $4.49
  21. GE Osmonics ® Purtrex PX-50-978 Sediment Replacement Water Filter # 93111
    GE Osmonics ® Purtrex PX-50-978 Sediment Water Filter # 93111
    GE Osmonics ® Purtrex PX-50-978 50 Micron Sediment Water Pre Filter. True-graded density pure polypropylene depth filter. # 93111 9 7/8" long X 2 1/2" diameter. 40 per case, sold individually. Order a case and save even more. Learn More
    $8.99 Special Price $5.99 As low as $3.99
  22. GE Osmonics ® Purtrex PX-5-20 5 Micron 20 Inch Sediment Water Filter # 93047
    GE Osmonics ® Purtrex PX-5-20 5 Micron 20 Inch Sediment Water Filter # 93047
    GE Osmonics ® Purtrex PX-5-20 5 Micron 20" Sediment Water Pre Filter. True-graded density pure polypropylene depth filter. # 93047 20" long X 2 1/2" diameter. 20 per case, sold individually. Order a case and save even more. Learn More
    $13.99 Special Price $8.99 As low as $4.49
  23. GE Osmonics ® Purtrex PX-75-978 Sediment Replacement Water Filter # 93110
    GE Osmonics ® Purtrex PX-75-978 Sediment Water Filter # 93110
    GE Osmonics ® Purtrex PX-75-978 75 Micron Sediment Water Pre Filter. True-graded density pure polypropylene depth filter. # 93110 9 7/8" long X 2 1/2" diameter. 40 per case, sold individually. Order a case and save even more. Learn More
    $8.99 Special Price $5.99 As low as $3.99
  24. GE Osmonics ® Purtrex PX-5-30 5 Micron 30 Inch Sediment Replacement Water Filter # 93059
    GE Osmonics ® Purtrex PX-5-30 5 Micron 30 Inch Sediment Replacement Water Filter # 93059
    GE Osmonics ® Purtrex PX-5-30 5 Micron 30" Sediment Replacement Water Pre Filter. True-graded density pure polypropylene depth filter. # 93059 30" long X 2 1/2" diameter. 20 per case, sold individually. Order a case and save even more. Learn More
    $17.99 Special Price $12.99
  25. GE Osmonics ® Purtrex PX-5-40 5 Micron 40 Inch Sediment Replacement Water Filter # 93063
    GE Osmonics ® Purtrex PX-5-40 5 Micron 40 Inch Sediment Replacement Water Filter # 93063
    GE Osmonics ® Purtrex PX-5-40 5 Micron 40" Sediment Replacement Water Pre Filter. True-graded density pure polypropylene depth filter. # 93063 40" long X 2 1/2" diameter. 20 per case, sold individually. Order a case and save even more. Learn More
    $21.99 Special Price $16.99
  26. GE Osmonics PX-01-40 Purtrex Sediment Filter 93141
    GE Osmonics PX-01-40 Purtrex Sediment Filter 93141
    Osmonics Purtrex PX-1-40 Sediment Prefilter 1 Micron 40" length Learn More
    $16.99

Be sure to check our Parts Departmentfor important parts such as TDS Testers, Replacement Tanks, O-rings,Housing Wrenches and more parts for your pure water filtration system.