Reverse Osmosis System Filters, RO Membranes and Parts

* RainSoft ® 9338 Reverse Osmosis System Water Filters

  1. RainSoft Hydrefiner P-12- Compatible Replacement Water Filter for #9875 - 9879, 17561, P12, 17366, and 13199 - Lifestyle Photo 1-1000
    RainSoft ® Hydrefiner P-12 # 9875 - 9879 17561, P12, 17366 13199 Compatible Replacement Water Filter
    RainSoft ® Hydrefiner P-12 # 9875 - 9879 17561, P12, 17366 13199 Compatible Replacement Water Filter. RainSoft ® Compatible P-12 # 9875 P12, Replacement Water Filter - Fits 9878, 9879 & Other Hydrefiner Systems - # 17561, 17366 , 13199. 6" long by 4 9/16" diameter. - 1/2" UNS Compression Female Threaded - Installation Note: The threaded part in the top of the housing cap is a "nipple". It may come out with the filter or with the housing. Whichever one it is in after the filter is removed the nipple can then be taken from the other item. It is just a small section of threaded tube. 12 per case, sold individually. Order extras and save even more. Learn More
    $89.99 Special Price $48.99 As low as $26.99
  2. GE Osmonics ® Purtrex PX-5-978 Sediment Replacement Water Filter # 93023
    GE Osmonics ® Purtrex PX-5-978 Sediment Replacement 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 full case and save even more. Learn More
    $8.99 Special Price $5.99 As low as $3.99
  3. GE Osmonics ® Purtrex PX-30-978 Sediment Replacement Water Filter # 93020
    GE Osmonics ® Purtrex PX-30-978 Sediment Replacement 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
  4. Omnipure CL-6RO-T/33 GAC Inline Replacement Water Filter-1000
    Omnipure ® CL-6RO-T/33 GAC Inline Replacement Water Filter
    Omnipure ® CL-6RO-T/33 inline GAC carbon water filter replacement cartridge. 1/4" (-B) or 3/8" (-C) FNPT (Female National Pipe Thread) connections. Replacement Jaco connectors and John Guest Speedfit connectors availble seperately for 1/4" or 3/8" tube. 50 per case, priced and sold individually. Order a case and save even more. Learn More
    $17.99 Special Price $9.99 As low as $6.49
  5. RainSoft- Compatible Ultrefiner CTA-RS12-10 RO Reverse Osmosis Membrane- 1000
    RainSoft ® Ultrefiner CTA-RS12-10 RO Compatible Reverse Osmosis Membrane 9744 17379
    RainSoft ® Ultrefiner CTA-RS12-10 RO Compatible Reverse Osmosis Membrane 9744 17379. RainSoft ® Ultrefiner Compatible CTA-RS12-10 Reverse Osmosis RO Membrane - CTA 10 Gallon Per Day Membrane - 9744 & 17379 (CTA-C112-10) (fits 9784, 9787, 9788, 9669, 9684, 9687, 9688, 9689, 9324, 9329, 9334, 9338, 9339, 9369, 9374, 9389, 9394, 9524, 9529, 9539, 9538, 9544 & others) C212-10-MU (CTA - ERO-200 Compatible) Learn More
    $89.99 Special Price $69.99 As low as $49.99
  6. TDS Meter - Test For Total Dissolved Solids In Water - Reverse Osmosis Membrane Tester - TDS Meter
    TDS Meter - Test For Total Dissolved Solids In Water - Reverse Osmosis Membrane Tester - TDS Meter
    TDS Meter - Tester. The Only Way To Know If Your Reverse Osmosis RO Membrane Is Performing Correctly - Tests for TDS - Total Dissolved Solids. A Must For All RO System Owners. Compare Incoming Feed Water To Treated Water - Replace Membrane If Less Than 80% of TDS Is Being Removed Learn More
    $49.99 Special Price $37.99 As low as $17.99
  7. TDS Meter Inline Water Tester DM1 - HM Digital Dual Mode Reading
    TDS Meter Inline Water Tester DM1 - HM Digital Dual Mode Reading - Easily Installs Inline - Very Simple To Use
    TDS Water Meter - HM Digital DM1 - Dual Mode - Installs Inline - Check the TDS level with the push of a button. Now you can easily check to make sure the water from your reverse osmosis system is top quality. Measure the tap water coming in vs. the purified water going out of your system at any time. Very easy installation. Highly efficient and accurate due to its advanced microprocessor technology. Auto-Off function conserves battery power. The unit shuts off automatically after 10 minutes of non-use. Dual Range 0-9990 ppm. Always know if your RO membrane is performing correctly! Learn More
    $49.99 Special Price $39.99 As low as $19.99
  8. Molykote-From DOw Corning- 111 Compound-6 Gram O-ring Silicone Lubricant & Sealant-Dow-111-5-gram-1000
    Dow Corning/ Molykote ® 111 6 gram O-ring Silicone Lubricant and Sealant - Be sure to lube your O-rings to help prevent leaks.
    Dow Corning/ Molykote ® 111 6 gram O-ring Silicone Lubricant and Sealant - 6 gram pillow pack. (like a ketchup packet) Great O-ring sealant and lubricant. FDA and NSF approved. (Do Not Use Petroleum Jelly As It May Break Down O-rings Or Housings) This is the same premium grade silicone sealant and lubricant used in underwater photography cameras, scuba gear and other underwater applications that simply can't afford leaks. Why not use the best for your reverse osmosis or drinking water filtration system? Learn More
    $5.99 Special Price $3.99 As low as $1.79
  9. Pro Products Sani System Water Filtration System Sanitizer
    Pro Products Sani System Water Filtration System Sanitizer
    Sani-System ® Pro Products is proud to introduce Sani-System, the first and only EPA product approved for sanitizing water softeners, RO units and Water Coolers. Alos NSF certified. Sani System is proven to kill 99.9% of E. coli, E. coli O157:H7, Staphylococcus aureus, Listeria monocytogenes and other harmful bacteria. It does not use chlorine, other oxidizers or acids that can harm water softener equipment parts. Use is simple; each dose comes in a pre-measured pouch. Just cut, pour and regenerate softener. No measuring, No mess! Sanitizing Equipment! Applications Interior Surfaces of Water Softeners, Reverse Osmosis (RO) Units, Ice Machines, Water Coolers, Water Holding Tanks and Pressure Tanks. Pro Products Sani System Sanitizer. 0.25 fl. oz. concentrate is perfect for your RO reverse osmosis drinking water system sanitizing.. Learn More
    $7.99 Special Price $4.99 As low as $2.49