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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Other RainSoft Water Filters

Other RainSoft ® Compatible Replacement Sediment Prefilter Water Filters, carbon filters, reverse osmosis membranes , DIY Repair Parts and HELP Guides

  1. Pentek P25-20 # 155226 P2520 Polydepth Sediment Replacement Water Filter Cartridge
    Pentek P25-20 # 155226 P2520 Sediment Water Filter Compatible With Culligan / Ametek / US Filter / Plymouth / Kleen Plus / American Plumber / Bruner & Many Other Brands
    Pentek P25-20 # 155226 P2520 Sediment Water Filter Compatible With Culligan / Ametek / US Filter / Plymouth / Kleen Plus / American Plumber / Bruner & Many Other Brands Spun Polypropylene 25 Micron Sediment Water Filter. 20" long X 2 1/2" diameter. 20 per case, sold individually. Ametek # 155226 P-Series cartridges are manufactured from 100% pure polypropylene fibers. The fibers have been carefully spun together to form a true gradient density from outer to inner surfaces. These cartridges are designed for purity. They will not impart taste, odor or color to the liquid being filtered when used within the recommended temperature limit. Also, the polypropylene construction provides superior chemical resistance and is not prone to bacterial attack. The coreless strength of the cartridges is achieved by sintering the many fibers into a solid matrix. Order a case and save even more.
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    $12.99 Special Price $8.99 As low as $6.99
  2. RAINSOFT - HYDREFINER P-6 - #9868, P6, 9791, & 17365- Compatible Water Filter- 1000
    RainSoft ® Hydrefiner P-6 # 9868, P6, 9791, 17365 Compatible Replacement Water Filter

    RainSoft ® Hydrefiner Compatible P-6 # 9868, 9794, 9791, 9751, 9277, P6 - Fits 9865, 9755, 9765 (226679), 9246, 167553. - 8 1/2" X 2 1/2" - Replacement Water Filter #12468, , 142197, 14530, 17365 - 1/4" FNPT screw on. - 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. The nipple is 1/4" MNPT (Male National Pipe Threads) on both ends.

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    $69.99 Special Price $49.99 As low as $32.99
  3. RainSoft Hydrefiner P-12- Compatible Replacement Water Filter for #9875 - 9879, 17561, P12, 17366, and 13199 - Lifestyle Photo 1-1000
    RainSoft ® Hydrefiner Compatible P-12 # 9875 - 9879 17561, P12, 17366 13199 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.
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    $89.99 Special Price $48.99 As low as $26.99
  4. RainSoft ® Ultrefiner TRS2514-150 Compatible Reverse Osmosis RO Membrane 9792, 17380, 9556
    RainSoft ® Ultrefiner TRS2514-150 Compatible Reverse Osmosis RO Membrane 9792, 17380, 9556

    RainSoft ® Ultrefiner TRS2514-150 Reverse Osmosis Compatible RO Membrane (DISCONTINUED) 9792, 17380, 9556. TFC 150 Gallon Per Day Membrane - Ref.# 17380 & M-T2514AP Fits 9792 & others. (fits 9690, 9695, 9696, 9340, 9350, 9355, 9356, 9390, 9395, 9396, 9550, 9555, 9556, 9694X2 & others) We suggest replacing this membrane, housing and flow restrictor with standard sizes. A standard size replacement membrane is much less expensive and so much easier to replace. ORDERING THE RAINSOFT TRS2514-150 HERE WILL BE FULFILLED WITH THE DOW FILMTEC 100 GPD MEMBRANE, MEMBRANE HOUSING AND 1000 ml FLOW RESTRICTOR.

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    $149.99 Special Price $99.99 As low as $74.99
  5. TDS Meter Inline Water Tester DM1 - HM Digital Dual Mode Reading
    TDS Meter Inline Tester- Dual Mode Reading - Easily Installs Inline - Very Simple To Use
    TDS Meter - 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. FEATURES Displays TDS levels of the feed water and product water with in & out electrode probes. 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. Comes equipped with John Guest Quick-Connect T-fittings as shown. Installs quickly and easily. SPECIFICATIONS Range: 0-9990 ppm Accuracy: ±2% Always know if your RO membrane is performing correctly!
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    $49.99 Special Price $39.99 As low as $19.99
  6. 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?

    Dow 111 Silicone MSDS Safety Sheet

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    $5.99 Special Price $3.99 As low as $1.79
  7. Pro Products Sani System RO & Water Filtration System Sanitizer
    Pro Products Sani System RO & 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..
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    $7.99 Special Price $4.99 As low as $2.99

Be sure to check our Parts Department for important parts such as TDS Testers For Reverse Osmosis Membranes, Replacement Tanks, O-rings , Filter Housing Wrenches, Faucets, Pumps, Fittings, UV Systems and more parts for your reverse osmosis pure water filtration system.   View maintenance and servicing tips online at our Installation & Trouble shooting Guide.





 

* RainSoft is the registered trademark of RainSoft, the manufacturer of RainSoft brand of under counter drinking water system filtration equipment.  The replacement water filter cartridges, reverse osmosis membranes, water tanks, faucets and repair parts listed above are not manufactured or endorsed by RainSoft  Rather, these replacement filters, RO reverse osmosis membranes and DIY replacement parts are manufactured by other companies.  While these replacement water filters, repair parts and reverse osmosis membranes are compatible for use in RainSoft under counter reverse osmosis water filtration equipment, we make no representation as to whether using these water filter cartridges and RO reverse osmosis membranes is consistent with the warranty and specifications applicable to RainSoft under sink drinking water system equipment.