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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  1. Water Factory ® 47-55704G2 / 47-9289G2 SQC Carbon Filter by 3M Purification Superseded By 3MROP412
    Water Factory ® 47-55704G2 / 47-9289G2 SQC Carbon Filter by 3M Purification Superseded By 3MROP412
    3MROP412 Replaces Water Factory ® 47-55704G2 / 47-9289G2 SQC Carbon Filter by 3M Purification. Full length granular activated carbon filter. High absorption granular activated carbon for chlorine and organic reduction. High capacity granular activated carbon for long life even in high chlorine areas. For use as a prefilter in SQC 40T, SQC 4, SQC PRO and SQC PRO C-80 (two required) and as the postfilter in SQC 40T and SQC 30T. IF YOU ORDER THE 47-55704G2/47-9289G2 YOU WILL RECEIVE THE 3MROP412.
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    $43.99 Special Price $41.35 As low as $38.35
  2. Water Factory ® 47-55706G2 SQC Sediment / Carbon Prefilter by 3M Purification Superseded By 47-9290G2
    Water Factory ® 47-55706G2 SQC Sediment / Carbon Prefilter by 3M Purification Superseded By 47-9290G2
    Water Factory ® 47-9290G2 Supersedes 47-55706G2 SQC Sediment / Carbon Prefilter by 3M Purification. Dual action prefilter designed for chlorinated water supplies. Combines our dirt & rust cartridge. 5 Micron Graded Density Sediment Prefilter for Optimal Dirt Holding Capacity. Graded Density for Long Life. High capacity granular activated carbon for long life even in high chlorine areas. For use as the prefilter in SQC3 and SQC 30T. IF YOU ORDER THE 47-55706G2 YOU WILL RECEIVE THE 47-9290G2.
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    $39.99 Special Price $29.99 As low as $25.99
  3. Water Factory ® 47-55710G2 SQC Carbon Filter by 3M Purification Superseded By 47-9298G2
    Water Factory ® 47-55710G2 SQC Carbon Filter by 3M Purification Superseded By 47-9298G2
    Water Factory ® 47-9298G2 Supersedes 47-55710G2 SQC Carbon Filter. Carbon block postfilter by 3M Purification. High absorption activated carbon block for final "polish" of drinking water. Provides high flow stream of drinking water through unique "radial flow" cartridge design. For use as postfilter for SQC 1 HF, SQC 2 HF, SQC 3 HF, SQC 3 HF, SQC 4 HF, SQC 4 and SQC PRO. IF YOU ORDER THE 47-55710G2 YOU WILL RECEIVE THE 47-9298G2.
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    $54.99 Special Price $43.99 As low as $39.99
  4. Water Factory ® 66-4706G2 SQC Reverse Osmosis Membrane by 3M Purification Superseded By 3MROM413
    Water Factory ® 66-4706G2 SQC Reverse Osmosis Membrane by 3M Purification Superseded By 3MROM413
    3MROM413 Replaces Water Factory ® 66-4706G2 SQC Reverse Osmosis Membrane by 3M Purification. Replaces the 66-4703G2 discontinued membrane. The most critical component to the reverse osmosis system function, the RO membrane module provides the means of separating fresh, clean drinking water from everyday tap water. This membrane is made of a thin film composite material (TFC) and is for use on chlorinated or unchlorinated water supplies. Effectively reduces: Total dissolved solids Lead Cysts (Crytosporidia and Giardia) Barium and Radium Selenium For use with SQC 2 HF, SQC 3 HF, SQC 4 HF and SQC PRO. IF YOU ORDER THE 66-4706G2 YOU WILL RECEIVE THE 3MROM413
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    $289.99 Special Price $199.99 As low as $189.99
  5. Water Factory ® 47-55706CM CoolerMate © Composite Sediment / Carbon Prefilter by 3M Purification
    Water Factory ® 47-55706CM CoolerMate © Composite Sediment / Carbon Prefilter by 3M Purification
    Water Factory ® 47-55706CM CoolerMate © Composite Sediment / Carbon Prefilter by 3M Purification. Dual action prefilter designed for chlorinated water supplies. Combines our dirt & rust cartridge made from an exclusive process using pure white cellulose fibers and high-absorption granular activated carbon. As water passes from the outer surfaces into the center of the cartridge, the filtering pores become increasingly smaller to remove even microscopic particles. Then chlorine and other organics are removed in the bed of granular carbon. 5 Micron Graded Density Sediment Prefilter for Optimal Dirt Holding Capacity. For use as the prefilter in CMRO-3TFC.
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    $39.99 Special Price $29.99 As low as $26.99
  6. Water Factory ® 47-55708CM CoolerMate © Carbon Block Filter by 3M Purification
    Water Factory ® 47-55708CM CoolerMate © Carbon Block Filter by 3M Purification
    Water Factory ® 47-55708CM CoolerMate © Carbon Block Filter by 3M Purification has been replaced by the 47-55708G2. If you order the 47-55708CM you will receive the 47-55708G2. Carbon block filter cartridge. High absorption activated carbon block for high capacity chlorine reduction. Provides high flow stream of drinking water through unique "radial flow" cartridge design. For use as second cartridge in CM 2 CTO products and as postfilter in CMRO-3TFC.
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    $62.99 Special Price $49.99 As low as $45.99
  7. Water Factory ® 47-55707G2 / 47-9295G2 FaucetMate © Ultrafine Carbon Block Filter by 3M Purification Superseded By 3MROP416
    Water Factory ® 47-55707G2 / 47-9295G2 FaucetMate © Ultrafine Carbon Block Filter by 3M Purification Superseded By 3MROP416
    3MROP416 Replaces Water Factory ® 47-55707G2 / 47-9295G2 FaucetMate © Ultrafine Carbon Block Filter by 3M Purification. Carbon block filter cartridge. High absorption activated carbon block specifically synthesized for reduction of volatile organic chemicals and small particles (down to 1 micron). Provides high flow stream of drinking water through unique "radial flow" cartridge design. For use as second cartridge in FM 2 Lead Plus and as third cartridge in FM 3 DWS 350 products or in CoolrMate ©. IF YOU ORDER THE 47-55707G2/47-9295G2 YOU WILL RECEIVE THE 3MROP416.
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    $67.99 Special Price $52.99 As low as $47.99
  8. Water Factory ® 47-55711G2 / 47-9299G2 SQC Carbon Filter by 3M Purification Superseded By 3MROP412
    Water Factory ® 47-55711G2 / 47-9299G2 SQC Carbon Filter by 3M Purification Superseded By 3MROP412
    3MROP412 Replaces Water Factory ® 47-55711G2 / 47-9299G2 SQC Carbon Filter by 3M Purification. Full length granular activated carbon filter. High absorption granular activated carbon for chlorine and organic reduction. High capacity granular activated carbon for long life even in high chlorine areas. Please note that the 3M replacement filter no longer has lead reduction. IF YOU ORDER THE 47-55711G2/47-9299G2 YOU WILL RECEIVE THE 3MROP412.
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    $43.99 Special Price $41.35 As low as $38.35
  9. Water Factory ® 47-5574704 FaucetMate © Carbon Block FM DWS 1500 Filter by 3M Purification
    Water Factory ® 47-5574704 FaucetMate © Carbon Block FM DWS 1500 Filter by 3M Purification
    Water Factory ® 47-5574704 FaucetMate © Carbon Block FM DWS 1500 Filter by 3M Purification. Fibrous carbon block filter cartridge. High absorption activated carbon block with fibrous, graded-density structure. Reduces lead from drinking water supplies. Also effective as a cyst reducing cartridge. Provides high flow stream of drinking water through unique "radial flow" cartridge design. High capacity activated carbon block. 1500 gallons of life. Rated for cyst, lead, chlorine, taste and odor and particulate reduction.
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    $99.99 Special Price $97.99 As low as $89.99
  10. Water Factory ® SQC-3 HF Reverse Osmosis System 04-045 by 3M Purification - Free Shipping *
    Water Factory ® SQC-3 HF Reverse Osmosis System 04-045 by 3M Purification - Free Shipping *
    Water Factory ® SQC-3 HF Reverse Osmosis System Includes Tank 04-045 by 3M Purification. The Water Factory System's SQC 3 HF under-the-counter reverse osmosis unit is a three (3) stage system designed for use on either chlorinated or non-chlorinated water supplies. The sanitary quick-change cartridges enable easy changes with no mess. The SQC 3 HF Model can produce up to 20 gallons of drinking water a day and can be installed to feed an ice-maker within your refrigerator. The minimum water pressure requirement of the SQC 3 HF Models is 50 psi. Uses (#1) 47-55706G2 Sediment/Carbon Prefilter, (#2) 66-4706G2 TFC HF Reverse Osmosis Membrane and (#3) 47-55710G2 Block Carbon Postfilter.
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    $699.99 Special Price $579.99 As low as $539.99
  11. Water Factory ® SQC-4 HF Reverse Osmosis System 04-063 by 3M Purification - Free Shipping *
    Water Factory ® SQC-4 HF Reverse Osmosis System 04-063 by 3M Purification - Free Shipping *
    Water Factory ® SQC-4 HF Reverse Osmosis System Includes Tank 04-063 by 3M Purification. The Water Factory System's SQC 4 HF under-the-counter reverse osmosis unit is a four (4) stage system is designed for use on either heavily chlorinated or non-chlorinated water supplies that is severely affecting the taste and odor of the water. The sanitary quick-change cartridges are easy to change with no mess. The SQC 4 HF Model can produce up to 20 gallons of drinking water a day and can be installed to feed an ice-maker within your refrigerator. The minimum water pressure requirement of the SQC HF Models is 50 psi. Uses (#1) 47-55702G2 Sediment Prefilter, (#2) 47-55704G2 Granular Carbon Prefilter, (#3) 66-4706G2 TFC HF Reverse Osmosis Membrane and (#4) 47-55710G2 Block Carbon Postfilter.
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    $983.46 Special Price $669.95 As low as $639.00
  12. 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
  13. 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
  14. 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.