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.

LOW PRICES and FAST SHIPPING SINCE 1999 !

99.5% Of All Items In Stock For Same Day Shipping!

MULTI-PURE Water Filters ®

MULTI-PURE Water Filters ®

Multi-Pure ®* MCP6 Compatible Fit Replacement Carbon Block Water Filters, Repair Parts and DIY HELP Guides

  1. MULTI-PURE - MPC6 Compatible Fit Replacement Carbon Block Water Filter - 1000
    Multi-Pure ® MPC6 Compatible* Fit Replacement Carbon Block Water Filter
    Multi-Pure ® MPC6 Compatible* Fit Replacement Carbon Block Water Filter - 6 1/4" H X 4 5/8" D. 1/4" FNPT (Fits Stainless Steel countertop or undersink standard-sized systems - Model Numbers MP750Sx, MPC500x, MPSSCT, MP1200EL, and MP500) New gasket included.
    Learn More
    $89.99 Special Price $49.99 As low as $39.99
  2. Dual Diverter Valve with Tubing - 2000
    Dual Diverter Valve With Tubing
    Replacement Dual Diverter Valve for Counter Top Water Filter System. Includes 2 New 36" Tubing, valve and connectors. Use this diverter valve when there are two tubes going to the filter housing and water is dispensed from the bottom of the diverter valve. Also used for certain countertop reverse osmosis systems. DVRSC-1/4CT The standard size is 1/4" tube. Order the large one for non-E-Spring, Standard Style Amway systems using two 3/8" O.D. connections. Order the 1/4" & 3/8" valve for a system using one 1/4" and one 3/8" O.D. connection. Please note the large for Amway and 3/8" & 1/4" valve is a slide on and off design.
    Learn More
    $27.99 Special Price $19.99 As low as $16.99
  3. Divert Valve - Tubing-3-8 (QMP700 3/8'' 36'' 3/8'' Vinyl Tubing in White - 1000
    Diverter Valve With Tubing For Countertop Water Filters
    Diverter Valve With 36" Tubing - Replacement Diverter Valve for Counter Top Water Filter System. 1/4" Tube and connectors. Use this diverter valve for water filter systems that have only one tube and the faucet is attached to the filter body. #D14 SW N
    Learn More
    $0.00
  4. DIVERTER VALVE- With Tubing for Countertop Water Filter Systems - 1000
    Diverter Valve With Tubing For Countertop Water Filters
    Diverter Valve With 36" Tubing - Replacement Diverter Valve for Counter Top Water Filter System. 1/4" Tube and connectors. Use this diverter valve for water filter systems that have only one tube and the faucet is attached to the filter body. #D14 SW N
    Learn More
    $27.99 Special Price $16.99 As low as $14.99
  5. 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

    Learn More
    $5.99 Special Price $3.99 As low as $1.79
  6. 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
  7. Puroflo FLR-868 faucet
    Puroflo FLR-868 Chrome Non-Air Gap Faucet
    Puroflo FLR-868 Long Reach Chrome Non-Air Gap Premium Faucet is NSF Certified. Smooth operating ceramic disk design with 12" High Reach Neck Design. California Prop. 65 and AB1953 compliant. Low Lead Level
    Learn More
    $41.99 Special Price $29.99
  8. Stainless Steel Designer Faucet for RO Reverse Osmosis & Drinking Water Filtration Systems
    Stainless Steel Designer Faucet for RO Reverse Osmosis & Drinking Water Filtration Systems
    Stainless Steel Designer Faucet for Drinking Water Systems. Beautiful designer faucet for beautiful kitchens. Air Gap / Non Air Gap design, single or three tube connection. Made of high quality 304 stainless steel incorporating a smooth operating ceramic disk element for extended reliability and quality. Great replacement upgrade for RO Reverse Osmosis and drinking water filtration systems. Lever Style Handle. High Reach Neck Design (12" / 305mm) 360 Degree Swivel Neck. Unique Protective Spout Tip which Prevents After Drip. 2 1/4" Base Diameter (57 mm) Drilled Hole Size Needed is 7/8".
    Learn More
    $219.99 Special Price $89.95
  9. Inline Check Valve - Back Flow Prevention - John Guest Speedfit Quick Connection 1/4SCV and 3/8SCV
    Inline Check Valve - Back Flow Prevention
    Inline Check Valve - Back Flow Prevention - Check Valve- 1/4" quick connect - one way flow, Easy to install. 1/4SCV and 3/8SCV or John Guest Elbow Fitting for Membrane Housing.
    Learn More
    $27.99 Special Price $19.99 As low as $17.99
  10. Filtamate 85 PSI APEX Inline Water Pressure Regulator With 1/4" Quick Connections
    Filtamate 85 PSI APEX Inline Water Pressure Regulator With 1/4" Quick Connections
    APEX Filtamate 85 PSI Inline Pressure Regulator. 1/4" Quick Connectors. Great inline pressure regulator to prevent excessive pressure from reaching your RO Reverse Osmosis system or other sensitive water equipment. Helps prevent water spikes, or surges, that can lead to system failure or leaks.
    Learn More
    $34.99 Special Price $22.99 As low as $19.39
  11. Inline Water Shut Off Valve-1000
    Inline Water Shut Off Valve - Great For Refrigerators And Ice Machines
    Inline Water Shut Off Valve With 1/4" or 3/8" Quick Connect Fittings - Very easy to install and use. - Great for refrigerators, UV systems, chillers, hot pots, coffee machines, ice machines etc.
    Learn More
    $14.99 Special Price $9.99 As low as $6.99
  12. John Guest ® Tube Cutter - TSNIP
    John Guest ® Tube Cutter - TSNIP
    John Guest ® tube cutter TSNIP - Great for making a perfect cut everytime. Helps prevent leaks by making a square end cut ensuring proper fit and seal in water connecttion fittings. A real must for any professional or discerning home owner.
    Learn More
    $17.99 Special Price $12.99 As low as $10.99
  13. John Guest Super Speedfit Quick Connector - Male - Elbow
    John Guest ® Super Speedfit Quick Connector - Male - Elbow
    ohn Guest ® Super Speedfit Quick Connector - Male - Elbow - John Guest Super Speedfit Quick Connectors - Male - MNPT - Sold in pairs. Price is per pair. These fittings are manufactured in gray acetal copolymer with food grade nitrile ‘o’ ring, making them especially suitable for applications involving foodstuff and potable liquids like reverse osmosis drinking water. They are equally suitable for air and inert gasses and can therefore be used on CO2 lines, pneumatic applications, and vacuum. For more than a decade, John Guest has been supplying Super Speedfit fittings to the Water Purification market for drinking water applications in homes, restaurants and industry. John Guest products are listed with the WRC(UK), NSF(US) and SK(Germany). PI480821S , PI480822S , PI480823S , PI481222S , PI481223S
    Learn More
    $8.99 Special Price $4.99 As low as $3.99
  14. John Guest ® Tee Connector For water Systems - Quick Connectors
    John Guest ® Tee Connector For Water Systems - Quick Connectors
    John Guest ® Tee Connector - Quick Connectors - All equal size connections or one port different for adaption. The body is produced in acetal copolymer. 'O'Rings are nitrile rubber. The collet is produced in acetal copolymer with stainless steel teeth. PI0208S , PI0212S , PI301208S , PI301612S.
    Learn More
    $14.99 Special Price $9.99 As low as $7.99
  15. Teflon-Tape-100-1000
    Teflon Plumbing Tape To Seal Threaded Water Connectors
    PTFE thread sealant tape permits quick, clean, economical sealing of male pipe threads of all sizes. Reduces the risk of system contamination common with liquid and paste sealants. A must use on all male threads used in reverse osmosis and pure drinking water filtration systems.
    Learn More
    $5.99 Special Price $3.39 As low as $2.75
  16. John Guest Angle Stop Water Valve
    John Guest ® Angle Stop Water Valve
    John Guest ® Angle Stop Water Valve - Makes installation a snap. Very simple to use. PPASV121208W and PPASV121212W
    Learn More
    $19.99 Special Price $12.99 As low as $10.99
  17. Easy Tap Water Feed Valve for Water Filter Systems - 2000
    Easy Tap Water Feed Valve
    Easy Tap Water Feed Valve - High flow tap valve. Follow the pipe up from the shut-off valve toward faucet until you reach a coupling nut (may be all the way up to the faucet). Unscrew coupling nut. Screw brass easy tap onto previous location of coupling nut. Hand tighten and then one more complete turn with wrench. Re-attach water line coupling nut to easy tap. The valve on the side of the easy tap is the shut off valve for your new RO system. If the handle is turned clockwise all of the way, this is the "OFF" position for your new RO system. Counterclockwise all of the way is the "ON" position.
    Learn More
    $19.99 Special Price $12.99 As low as $9.99
  18. Chiller Daddy CHL-750XL Under Sink Water Chiller - 110 Volt
    Chiller Daddy CHL-750XL Under Sink Water Chiller - 110 Volt

    110 Volt Chiller Daddy ® CHL-750XL Under Sink Water Chiller -  NEW TANK IS 25% LARGER than our previous chillers.  Output Cold Tank Volume : 3 liter (0.8 gallon) Exterior cabinet is made of RUST FREE 304 SS Stainless Steel. Cold Water Container is made of SUS304 Stainless Steel. Inlets and outlets are 1/4" stainless steel 304. Includes a pair of quick connectors for a simple hook up. Output of Cold Water : 1.34 Gallons Per Hour (5 Liters 5L/H (<10C) Continuous Cold Water Output(cc/hr) 5,400. This is a high output, heavy duty undersink drinking water chiller. Great for use with a Reverse Osmosis System or drinking water filter system.

    Learn More
    $499.99 Special Price $349.99 As low as $310.99
  19. UV-SS2-1000
    UV-SS2 1 Gallon per Minute UV Ultraviolet Water Sterilizer

    304 Stainless Steel 1 GPM UV Assembly With 1/4" FNPT Connections. 6 watt Phillips UV Lamp, quartz sleeve and 100 volt transformer.  Individually boxed.  Great addition to any RO reverse osmosis system or undercounter drinking water filter system.

    Learn More
    $99.99
  20. 3M  6-in-1 Water Test Kit -Simple to Use - DIY In Home Water Quality Test Kit
    3M 6-in-1 Water Test Kit -Simple to Use - DIY In Home Water Quality Test Kit
    6 in 1 Home Water Test Kit by 3M. Use this 3M DIY water quality test for convenient on-site testing. The 3M DIY water quality test kit provides quick analysis.
    Learn More
    $15.75 Special Price $12.99

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.





* Multi-Pure is the registered trademark of Multi-Pure, the manufacturer of Multi-Pure 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 Multi-Pure. 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 Multi-Pure 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 Multi-Pure under sink drinking water system equipment.