Save With Quantity Discounts On Replacement Water Filters and Reverse Osmosis Membranes

Water Factory High Pressure RO System Water Filters

Water Factory High Pressure RO System Water Filters

Water Factory Systems High Pressure Reverse Osmosis System Compatible Premium Replacement Water Filters and RO Reverse Osmosis Membranes

Replacement water accumulator holding tanks, water filter cartridges, RO membranes, O-rings, Filter Housing Spanner Wrenches, Valves, Water Pumps and reverse osmosis water system replacement parts.

  1. AquaPure AP110 by 3M Purification ® Fine / Normal Sediment Water Filters - 55410-14 - 2 Pack - 5 Micron Nominal

    Regular Price: $28.99

    Special Price $18.99

    As low as: $16.99
    Aqua-Pure AP110 by 3M Purification ® For Premium Performance Filtration - aka AquaPure or Aqua Pure - This Aqua-Pure dirt & rust cartridge is made from an exclusive process using pure white celluose fibers.Reduces sedimentAverage life: 6 months (incoming water quality may affect cartridge life)Proprietary polypropylene manufacturing processGrooved surface increases total surface area for longer cartridge life than non-grooved filter cartridgesRigid construction helps to eliminate sediment “unloading” due to variances in water pressureSystem materials are FDA CFR-21 compliantLearn More
  2. Aqua-Pure AP1001 by 3M Purification ® 1 micron sediment water filters - 2 Pack

    Regular Price: $98.99

    Special Price $74.47

    As low as: $64.47
    Aqua-Pure AP1001 by 3M Purification ® 1 micron sediment water filters - 2 Pack - aka AquaPure or Aqua Pure - For Premium Performance Filtration- This Aqua-Pure dirt & rust cartridge is made from an exclusive process using pure white celluose fibers. As water passes from the outer surfaces into the center of the cartridge, the filtering pores become increasingly smaller to remove even microscopic particles. Unlike string-wound and pleated paper cartridges, the rigid, sturdy construction of the Aqua-Pure cartridges are able to withstand high pressure drop and stressful conditions such as water hammer. Fits Housing: Whole House: AP101S, AP101T, AP102T, AP102S, AP11S, AP11T, AP12S, AP12T, AP1610, AP2610 Point-of-Use: AP51T Learn More
  3. AquaPure AP811 by 3M Purification ® #55779-04 Large Diameter 25 Micron Sediment Filter

    Regular Price: $37.99

    Special Price $24.99

    As low as: $21.99
    AquaPure AP811 by 3M Purification ® #55779-04 aka Aqua-Pure or Aqua Pure - Large Diameter 25 Micron Sediment Filter. AquaPure graded density cartridges are the industry benchmark in terms of quality and performance. This is a result of perfecting the technology that provides both a rigid construction that prevents collapse under all water pressure conditions, and porous cylinder that traps all materials efficiently without affecting water flow. Fits AP801 Filter Housing. Easy Cartridge Changeout. 25 Micron Nominal Medium Dirt/Rust Sediment Removal. Sold Individually. Learn More
  4. AquaPure AP420 by 3M Purification ® # 55274-07 Normal Sediment Removal Filter With Scale Inhibitor - 2 Pack

    Regular Price: $167.29

    Special Price $89.99

    As low as: $81.99
    AquaPure AP420 by 3M Purification ® # 55274-07 aka AquaPure or Aqua Pure - Normal Sediment Removal Filter With Scale Inhibitor.Reduces sediment1 and scale1 Average cartridge life: 6 months (incoming water quality may affect cartridge life) Proprietary polypropylene manufacturing process Grooved surface increases total surface area for longer cartridge life compared than non-grooved filter cartridges Rigid construction helps to eliminate sediment “unloading” due to variances in water pressure Materials are FDA CFR-21 compliant**Surfaces that are in contact with water are FDA CR-21 compliant Learn More
  5. AquaPure AP117 by 3M Purification ® taste, odor, dirt, rust and sediment water filters - 55417-13 - 2 Pack

    Regular Price: $99.99

    Special Price $69.99

    As low as: $54.99
    Aqua-Pure AP117 by 3M Purification ® aka AquaPure or Aqua Pure - Fits AP51T (and all standard Aqua-Pure Whole House Filters)Reduces sediment, chlorine taste and odorCartridge manufactured using proprietary polypropylene material for sediment reductionHigh quality granular activated carbon increases surface area for adsorptionAverage cartridge life: 6 months (incoming water quality may affect cartridge life)Santoprene gaskets on both ends help provide sealing within housings, which helps to prevent bypass of unfiltered water Learn More
  6. AquaPure AP1003 by 3M Purification ® 3 micron sediment water filters

    Regular Price: $69.99

    Special Price $56.99

    As low as: $52.99
    Aqua-Pure AP1003 by 3M Purification ® 3 micron sediment water filters - 2 Pack - aka AquaPure or Aqua Pure. Fits Housing: Whole House: AP101S, AP101T, AP102T, AP102S, AP11S, AP11T, AP12S, AP12T, AP1610, AP2610 Point-of-Use: AP51T #5566604 Learn More
  7. Aquapure APS117 by 3M Purification ® Taste & Odor Replacement Filter #APS117-01

    Regular Price: $39.99

    Special Price $27.99

    As low as: $23.99
    AquaPure APS117 by 3M Purification ® Replacement Cartridges - Taste/Odor Cartridges Contains phosphate (scale inhibitor) for ice makers.Reduces sediment, chlorine taste and odor and scaleManufactured using proprietary polypropylene material for sedimentAverage cartridge life: 6 months (incoming water quality may affect cartridge life)High quality granular activated carbon increases surface area for adsorption Learn More
  8. AquaPure 817 by 3M Purification ® Dual Action Large Diameter Water Filter

    Regular Price: $55.00

    Special Price $44.99

    As low as: $39.99
    Aqua-Pure 817 by 3M Purification ® Dual Action Large Diameter Water Filter. Dimensions: 9 7/8” L x 4 5/8” W 25 Micron Nominal Filtration Flow Rate: 10 gpm Dirt and Rust Reduction Rigid Construction Withstands Stressful Conditions Maximum operating temperature of 100° F Made from FDA (CFR 21) Compliant Materials Chlorine Taste/Odor Reduction Polyethylene Outer Shell PolyKLEAN Center Core Granular Activated Carbon Learn More
  9. AquaPure AP810 By 3M Purification ® # 55779-15 Large Diameter 5 Micron Sediment Filter

    Regular Price: $34.99

    Special Price $25.99

    As low as: $22.99
    AquaPure AP810 By 3M Purification ® # 55779-15 aka Aqua-Pure or Aqua Pure - Large Diameter 5 Micron Sediment Filter. AquaPure graded density cartridges are the industry benchmark in terms of quality and performance. This is a result of perfecting the technology that provides both a rigid construction that prevents collapse under all water pressure conditions, and porous cylinder that traps all materials efficiently without affecting water flow. Fits AP801 Filter Housing. Easy Cartridge Changeout. 5 Micron Nominal Normal Dirt/Rust Sediment Removal. Sold Individually. Learn More
  10. AquaPure AP124 #55424-07 by 3M Purification ® 50 Micron Sediment Water Filters - 2 pack

    Regular Price: $24.99

    Special Price $17.99

    As low as: $14.99
    AquaPure AP124 #55424-07 by 3M Purification ® 50 Micron Sediment Water Filters - 2 pack - aka Aqua-Pure or Aqua PureCartridge reduces sedimentAverage cartridge life: 6 months (incoming water quality may affect cartridge life)Manufactured using proprietary polypropylene manufacturing processGrooved surface increases total surface area for longer cartridge life Learn More
  11. AquaPure AP017 by 3M Purification ® taste, odor, dirt, rust and sediment water filters

    Regular Price: $22.99

    Special Price $16.99

    As low as: $14.99
    AquaPure AP017 by 3M Purification ® taste, odor, dirt, rust and sediment water filtersRemoves Chlorine, Taste, Odor, Sediment and Rust Learn More
  12. Aqua-Pure 3M-IL-IM-01
    $27.99
    Reduces sediment and chlorine taste and odor for clearer and cleaner drinking water, as well as ice cubes Inline design is ideal for refrigerators, drinking fountains, ice makers, coffee machines and drink dispensers Learn More
  13. AquaPure AP817-2 Replacement Water Filter Cartridge by 3M Purification

    Regular Price: $152.94

    Special Price $99.99

    As low as: $95.99
    AquaPure AP817-2 by 3M Purification Replacement Carbon Water Filter Cartridge. Replaces AquaPure AP-815-2. Dimensions: 20 1/8” L x 4 5/8” W. 25 Micron Nominal Filtration Flow Rate: 20 gpm Dirt and Rust Reduction. Rigid Construction Withstands Stressful Conditions. Maximum operating temperature of 100° F. Made from FDA (CFR 21) Compliant Materials. Chlorine, Taste/Odor Reduction. Polyethylene Outer Shell, PolyKLEAN Center Core. Granular Activated Carbon. Learn More
  14. AquaPure AP124-2 by 3M Purification ® 50 Micron Sediment Water Filter

    Regular Price: $28.50

    Special Price $18.99

    As low as: $15.99
    AquaPure AP124-2 by 3M 3M Purification ® 50 Micron Sediment Water Filters - aka Aqua-Pure or Aqua Pure - Flow Rate: 16 gpm (60.6 lpm) Fits Housing: Whole House: AP101S, AP101T, AP102T, AP102S, AP11S, AP11T, AP12T, AP12S, AP1610, AP2610 Point-of-Use: AP51T Comm. SS: SS1-SS12, SS20-SS36 Learn More
  15. AquaPure AP811-2 by 3M Purification ® #55779-09 Large Diameter 25 Micron 20 Inch Sediment Filter

    Regular Price: $97.70

    Special Price $49.50

    As low as: $46.50
    AquaPure AP811-2 by 3M Purification ® #55779-09 aka Aqua-Pure or Aqua Pure - Large Diameter 25 Micron 20 Inch Sediment Filter. For Premium Performance Filtration - This Aqua-Pure larger diameter dirt & rust cartridge is for larger homes and commercial applications. It is made from an exclusive process using pure white celluose fibers. As water passes from the outer surfaces into the center of the cartridge, the filtering pores become increasingly smaller to remove even microscopic particles. Unlike string-wound and pleated paper cartridges, the rigid, sturdy construction of the Aqua-Pure cartridges are able to withstand high pressure drop and stressful conditions such as water hammer. While it fits Aqua-Pure Filter Housing AP802, it also fits other major brands. Cartridge Dimensions: 19 7/8" High x 4 5/8" Diameter - Graded Density For Long Life Hot & Cold Water (up to 100° F) Flow Rates up to 45 GPM - 25 Micron Nominal Medium Sediment Removal. Sold Individually. Learn More
  16. AquaPure AP110-2 by 3M Purification ® Fine/Normal Sediment Water Filter - 5 Micron Nominal

    Regular Price: $26.99

    Special Price $19.99

    As low as: $17.49
    Aqua-Pure AP110-2 by 3M Purification ® Fine/Normal Sediment Water Filters - 5 Micron Nominal. This Aqua-Pure dirt & rust cartridge is made from an exclusive process using pure white celluose fibers. As water passes from the outer surfaces into the center of the cartridge, the filtering pores become increasingly smaller to remove even microscopic particles. Unlike string-wound and pleated paper cartridges, the rigid, sturdy construction of the Aqua-Pure cartridges are able to withstand high pressure drop and stressful conditions such as water hammer. Learn More
  17. AquaPure AP810-2 by 3M Purification

    Regular Price: $49.99

    Special Price $39.99

    As low as: $35.99
    AquaPure AP810-2 by 3M Purification ® #55779-07 aka Aqua-Pure or Aqua Pure - Large Diameter 5 Micron 20 Inch Long Sediment Filter. For Premium Performance Filtration. This AquaPure larger diameter dirt & rust cartridge is for larger homes and commercial applications. It is made from an exclusive process using pure white celluose fibers. As water passes from the outer surfaces into the center of the cartridge, the filtering pores become increasingly smaller to remove even microscopic particles. Unlike string-wound and pleated paper cartridges, the rigid, sturdy construction of the Aqua-Pure cartridges are able to withstand high pressure drop and stressful conditions such as water hammer. While it fits AquaPure Filter Housing AP802, it also fits other major brands. Learn More
  18. AquaPure AP110-3 by 3M Purification ® Fine/Normal Sediment Water Filter - 5 Micron Nominal

    Regular Price: $25.99

    Special Price $21.99

    As low as: $19.99
    Aqua-Pure AP110-3 by 3M Purification ® Fine/Normal Sediment Water Filters - 5 Micron Nominal. This Aqua-Pure dirt & rust cartridge is made from an exclusive process using pure white celluose fibers. As water passes from the outer surfaces into the center of the cartridge, the filtering pores become increasingly smaller to remove even microscopic particles. Unlike string-wound and pleated paper cartridges, the rigid, sturdy construction of the Aqua-Pure cartridges are able to withstand high pressure drop and stressful conditions such as water hammer. Learn More
  19. Aqua-Pure-AP111-3 Medium Sediment Replacement Water Filters

    Regular Price: $15.87

    Special Price $15.86

    Aquapure AP111-3 by 3M Purification Medium Sediment Water Filters - 5541112 - 25 Micron Nominal Learn More
  20. AquaPure 68900-34 Adjustable Strap Wrench For Water Filter Housings

    Regular Price: $12.99

    Special Price $8.99

    As low as: $7.49
    AquaPure 68900-34 Adjustable Strap Wrench For Water Filter Housings - Universal Strap Wrench; Works with Most Water Filter Housings. AquaPure 68900-34 Adjustable Strap Wrench: Use for twisting off the canister or sump on many water filter housings. The Adjustable Strap Wrench can be used with many water filtration housings. The strap adjusts to the size of the water filter housing. Do NOT use the AquaPure 68900-34 Adjustable Strap Wrench to tighten the water filter housing sump. Overtightening the sump can cause damage to the o-rings and make re-opening the housing sump difficult. You should only hand tighten the housing sump. The AquaPure 68900-34 Adjustable Strap Wrench makes replacing water filters easy. Learn More
  21. Pro Products Sani System Water Filtration System Sanitizer

    Regular Price: $7.99

    Special Price $4.99

    As low as: $2.49
    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
  22. Aqua-Pure-o-ring-bb-6889832 for 3M CUNO Water Filter Housings

    Regular Price: $8.99

    Special Price $4.99

    As low as: $3.29
    AquaPure Drinking Water Filter Housing O-ring #6889832 by 3M Purification. Keep your system from leaking and causing expensive damages by replacing your o-rings every other time you change your water filters. Be sure to order Dow 111 silicone sealant so the o-rings will seal properly. Never use petroleum based greases such as Vasoline. Use the best sealant, use Dow 111 silicone. Learn More
  23. AquaPure Drinking Water Filter Housing O-ring #63597174 by 3M CUNO

    Regular Price: $8.99

    Special Price $4.99

    As low as: $3.29
    AquaPure Drinking Water Filter Housing O-ring #63597174 by 3M Purification. Keep your system from leaking and causing expensive damages by replacing your o-rings every other time you change your water filters. Be sure to order Dow 111 silicone sealant so the o-rings will seal properly. Never use petroleum based greases such as Vasoline. Use the best sealant, use Dow 111 silicone. Learn More
  24. Molykote-From DOw Corning- 111 Compound-6 Gram O-ring Silicone Lubricant & Sealant-Dow-111-5-gram-1000

    Regular Price: $5.99

    Special Price $3.99

    As low as: $1.79
    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
  25. TDS Meter - Test For Total Dissolved Solids In Water - Reverse Osmosis Membrane Tester - TDS Meter

    Regular Price: $49.99

    Special Price $37.99

    As low as: $17.99
    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
  26. TDS Water Meter Dual Mode Readings - DM2 HM Digital Professional Grade

    Regular Price: $69.99

    Special Price $49.99

    As low as: $29.99
    TDS Meter Dual Mode Readings - Professional Grade - Easily Installs Inline - Very Simple To Use. Measure the tap water coming in vs. the purified water going out of your system at any time. Use the meter to determine when the filters need to be changed. Highly efficient and accurate due to its advanced microprocessor technology. Displays TDS levels of the Feed Water and Product Water with in & out electrode probes. Auto-Off function conserves battery power. The unit shuts off automatically after 20 seconds. Dual Range - Measures from 0-999 ppm, with a resolution of 1 ppm. Learn More
  27. Amtrol ® RO 14 Replacement Water Accumulator Tank

    Regular Price: $199.99

    Special Price $149.99

    As low as: $139.99
    Amtrol ® RO Mate 14 RO Replacement Tank - Amtrol RO Mate 14 Replacement Tank for Reverse Osmosis Systems. 14 Gallon (22 3/16" high X 15 3/8" diameter - including base) Tank valve is located on the bottom of the tank. Remove the rubber protective cover to install the valve. SS Stainless Steel Connection Stem - Connection Size: 1/4" MNPT - Valve Optional Learn More
  28. Amtrol ® RO 20 Water Accumulator Tank

    Regular Price: $249.99

    Special Price $199.99

    As low as: $165.00
    Amtrol ® RO 20 Water Tank - 20 Gallon (31 3/4" high X 15 3/8" diameter) Connection Size: 3/4" MNPT Learn More
  29. Amtrol ® RO 34 Pro Water Tank - For Large Storage Needs

    Regular Price: $799.99

    Special Price $699.99

    As low as: $649.99
    Amtrol ® RO 34 Pro Water Tank - (29" high x 21" diameter) Ideal for large storage capacities of RO reverse osmosis water. Pro model has connection port extended through the base and out the front for easy access. Connection Size: 1 1/4" FNPT Ships via UPS. Learn More

Easy TDS Membrane Performence Calculator
See If It is Time To Replace Your Membrane

Simply enter your Feed Water TDS and RO Water TDS into the boxes above and click "Submit". The percentage of TDS (total disolved solids) rejection will be displayed. We normally recommend membrane replacement once you drop below 75%. This may vary in areas with high TDS in the feed water.   Let the tap water and reverse osmosis water run for a few seconds before drawing your sample.

See our selection of TDS meters under Water Tests.  Knowing the rejection rate is the only wat to know if it is time to replace your reverse osmosis membrane.


CUNO Water Factory Replacement Water Filters
* WATER FACTORY ® IS THE REGISTERED TRADEMARK OF 3M FILTRATION, THE MANUFACTURER OF WATER FACTORY ® BRAND WATER TREATMENT EQUIPMENT. THE REPLACEMENT FILTERS AND MEMBRANES LISTED ABOVE ARE MANUFACTURED BY 3M WATER FACTORY AS SO NOTED. WATER FACTORY REVERSE OSMOSIS DRINKING WATER SYSTEMS WERE ALSO MANUFACTURED AND SOLD UNDER THE CUNO BRAND NAME. WE ALSO OFFER COMPATIBLE REPLACEMENT SEDIMENT WATER FILTERS, REPLACEMENT CARBON BLOCK WATER FILTERS, GAC CARBON FILTERS, INLINE POST FILTERS, RO REVERSE OSMOSIS MEMBRANES, PRE FILTERS, FAUCETS, WATER TANKS, VALVES, PUMPS, UV ULTRAVIOLET AND WATER TESTING SUPPLIES FROM VARIOUS OTHER MANUFACTURERS FOR DISCONTINUED CUNO WATER FACTORY DRINKING WATER SYSTEMS.