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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KX Matrikx 5" X 2 3/4" Extruded Carbon Block Water Filters ®

KX Matrikx 5" X 2 3/4" Extruded Carbon Block Water Filters ®

KX Matrikx 5" X 2 3/4" ® Replacement Carbon Block Water Filters For Filtration Pure Drinking Water Systems

KX Matrikx 5

  1. KX Matrikx ® PB1 5 Inch 0.5 Micron Carbon Block Replacement Water Filter # 06-250-125-050
    KX Matrikx ® PB1 5 Inch 0.5 Micron Carbon Block Replacement Water Filter # 06-250-125-050

    KX Matrikx ® PB1 # 06-250-125-050 0.5 Micron 5" Extruded Carbon Block Water Filter. Lead, Cyst, Giardia and Crytosporidim Reduction. 5" long X 2 1/2" diameter. 40 per case, sold individually. Order a case and save even more.

    KX TECHNOLOGIES - 06-250-10-MATRIKX - 10" X 2.5" MATRIKX PB1 - 0.5 MICRON - CHLORINE/CHLORAMINE, VOC, CYST, LEAD FILTER

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    $21.99 Special Price $12.99 As low as $9.99
  2. Pentek SW-1A # 150539 SW1 Slim Line Water Filter Housing Spanner Wrench
    Pentek SW-1A # 150539 SW1 Slim Line Water Filter Housing Spanner Wrench Compatible With Culligan / Ametek / US Filter / Plymouth / Kleen Plus / American Plumber / Bruner & Many Other Brands
    Pentek SW-1 # 150539 SW1 Slim Line Water Filter Housing Spanner Wrench Compatible With Culligan / Ametek / US Filter / Plymouth / Kleen Plus / American Plumber / Bruner & Many Other Brands. SW-1 Water Filter Housing Wrench. Fits 4" Slim Line Housings. (Slim Line Housings Have A 3 1/2" diameter "O" Ring) Ametek # 150294 Only for use in loosening filter housings, never to tighten. Overtightening may cause damage to the O-rings and make re-opening VERY difficult. Hand tighten only. Fits most standard style RO systems. Replaces 150294. For really stubborn filter housings our technicians will use two wrenches together for maximum power where one wrench might break or not do the job. Our techs know the tricks. Order New O-rings And Be Sure To Lube Them With Dow 111 Silicone Sealant To Prevent Leaks
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    $9.99 Special Price $6.99 As low as $4.99
  3. PENTEK- #151121- Slim-Line Water Filter Housing Replacement - 1000
    Pentek # 151121 O-Ring For Slim Line Water Filter Housing Compatible With Culligan / Ametek / US Filter / Plymouth / Kleen Plus / American Plumber / Bruner & Many Other Brands
    Pentek # 151121 O-Ring For Slim Line Water Filter Housing Compatible With Culligan / Ametek / US Filter / Plymouth / Kleen Plus / American Plumber / Bruner & Many Other Brands. O-Ring For Slim Line Water Filter Housing. Buna-N FDA Grade. (Slim Line Housings Use A 3 1/2" diameter "O" Ring) Ametek # 151121 Same as Culligan OR-38 O-ring.
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    $5.69 Special Price $4.99 As low as $3.00
  4. 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
  5. 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..
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    $7.99 Special Price $4.99 As low as $2.49
  6. Pentek ® 158002 SlimLine 5 Inch Water Filter Housing
    Pentek ® 158002 SlimLine 5 Inch Water Filter Housing
    Pentek ® 158002 SlimLine 5" Water Filter Housing. 3/8" Female NPT Threads. For 5" replacement water filter cartridges. Built in pressure relief valve provides easier filter changing.
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    $28.99 Special Price $19.99 As low as $16.99
  7. Pentek # 153014 5 inch Replacement Water Filter System Sump Housing
    Pentek # 153014 5 inch Replacement Water Filter System Sump Housing

    Pentek # 153014 5 inch Replacement Water Filter System Sump. Also fits most Culligan, Ametek, US Filter, Plymouth, Kleen Plus, American Plumber, Bruner and many other brands. Slim Line 5" Replacement Sump - # 153014 - Fits Housings Using 3 1/2" Diameter Slim Line O-Rings. O-rings Sold Separately. Be Sure To Lubricate New O-rings With Dow 111 Silicone Sealant. Priced in Blue. Clear available for additional amount.

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    $23.99 Special Price $14.99 As low as $10.99
  8. Pentek P5-478 # 155030 P5 478 Sediment Replacement Water Filter Cartridge
    Pentek P5-478 # 155030 P5 478 Sediment Water Filter Compatible With Culligan / Ametek / US Filter / Plymouth / Kleen Plus / American Plumber / Bruner & Many Other Brands
    Pentek P5-478 # 155030 P5 478 Sediment Water Filter Compatible With Culligan / Ametek / US Filter / Plymouth / Kleen Plus / American Plumber / Bruner & Many Other Brands. 5 micron Sediment Spun Polypropylene Sediment Water Filter 4 7/8" long X 2 1/2" diameter. 24 per case, sold individually. Ametek # 155030 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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    $8.99 Special Price $5.99 As low as $2.99
  9. Pentek C-2 # 155022 C2 Taste & Odor Replacement Water Filter
    Pentek C-2 # 155022 C2 Taste & Odor Water Filter Compatible With Culligan / Ametek / US Filter / Plymouth / Kleen Plus / American Plumber / Bruner / Many Other Brands
    Pentek C-2 # 155022 Compatible With Culligan / Ametek / US Filter / Plymouth / Kleen Plus / American Plumber / Bruner / Many Other Brands C2 Taste & Odor Water Filter. C2 Activated Carbon-Impregnated Cellulose 5 Micron Taste & Odor Water Filter. 4 7/8" long X 2 1/2" diameter. 24 per case, sold individually. Ametek # 155022 C Series cartridges offer an economical solution for all your general-purpose water filtration needs. Constructed of a carbon impregnated cellulose media, these dual-purpose cartridges filter out fine sediment particles and reduce unwanted taste, odor and chlorine from your tap water. A polyester reinforcement backing and external netting provide additional strength and dirt-loading capacity. These dual-purpose cartridges are well suited for a wide range of residential applications, and make excellent polishing filters when used in process or closed-loop streams. Order a case and save even more.
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    $8.99 Special Price $6.99 As low as $4.49
  10. Pentek R30-478 # 155031 R-30-478 Sediment Pleated Replacement Water Filter Cartridge
    Pentek R30-478 # 155031 R-30-478 Sediment Water Filter Compatible With Culligan / Ametek / US Filter / Plymouth / Kleen Plus / American Plumber / Bruner & Many Other Brands
    Pentek R30-478 # 155031 R-30-478 Sediment Water Filter Compatible With Culligan / Ametek / US Filter / Plymouth / Kleen Plus / American Plumber / Bruner & Many Other Brands Pleated Polyester 30 Micron Sediment Water Filter. 4 7/8" long X 2 1/2" diameter 24 per case, sold individually. Ametek # 155031 R Series cartridges are manufactured from a durable, non-woven and reusable polyester fabric that is suitable for a wide range of filtration uses. The media is pleated to maximize dirt-holding capacity and extend the time period between changes or cleaning. R Series cartridges are resistant to both bacteria and chemical attack making them suitable for a variety of residential, commercial and industrial applications. Order a case and save even more.
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    $12.99 Special Price $8.99 As low as $6.99
  11. Pentek EP-10 # 155531 EP10 Carbon Block Replacement Water Filter Cartridge
    Pentek EP-5 # 255424-03 EP5 Carbon Block Replacement Water Filter Cartridge

    Pentek EP-5 # 255424-03 EP5 Carbon Block Replacement Water Filter Cartridge Compatible With Culligan / Ametek / US Filter / Plymouth / Kleen Plus / American Plumber / Bruner & Many Other Brands. Carbon Block 5 Micron Water Filter. 4 3/4" long X 2 7/8" diameter. 12 per case, sold individually. Ametek # 255424-03 EP Series cartridges are versatile and combine the long life of carbon block filtration with the higher dirt-loading tolerance of wound, carbon-impregnated paper cartridges like our C-1. EP Series cartridges are manufactured using a patented process that yields a cartridge with a nominal 5-micron filtration rating, high porosity and greater chlorine removal capacity. The high porosity design helps prevent the cartridge from plugging before its adsorption capability is exhausted, maximizing the utilization of the carbon while maintaining low pressure drop. Order a case and save even more.

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    $17.99 Special Price $13.99 As low as $12.99
  12. Pentek CBC-5 # 155169 Taste & Odor Carbon Block Replacement Water Filter CBC5
    Pentek CBC-5 # 155169 Taste & Odor Water Filter CBC5 Compatible With Culligan / Ametek / US Filter / Plymouth / Kleen Plus / American Plumber / Bruner and Many Other Brands
    Pentek CBC-5 # 155169 Taste & Odor Water Filter CBC5 Compatible With Culligan / Ametek / US Filter / Plymouth / Kleen Plus / American Plumber / Bruner and Many Other Brands. Carbon Block Half Micron Taste & Odor Water Filter. 4 7/8" long X 2 1/2" diameter. 24 per case, sold individually. Ametek # 155169 CBC Series cartridges are highly effective at reducing unwanted taste, odor, chlorine, certain VOC's and pesticides from potable drinking water. With a nominal 0.5-micron rating, they are equally effective at reducing Cryptosporidium and Giardia cysts, as well as fine sediment. They also make excellent polishing filters or pre-filters in applications requiring fine filtration and high capacity. Order a case and save even more.
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    $16.99 Special Price $11.99 As low as $8.99
  13. Pentek GAC-5 # 155110 GAC5 Taste & Odor Replacement Water Filter Cartridge
    Pentek GAC-5 # 155110 GAC5 Taste & Odor Water Filter Compatible With Culligan / Ametek / US Filter / Plymouth / Kleen Plus / American Plumber / Bruner & Many Other Brands
    Pentek GAC-5 # 155110 GAC5 Taste & Odor Water Filter Compatible With Culligan / Ametek / US Filter / Plymouth / Kleen Plus / American Plumber / Bruner & Many Other Brands. Granular Activated Carbon Taste & Odor Water Filter. 4 7/8" long X 2 1/2" diameter. 24 per case, sold individually. Ametek # 155110 GAC Series cartridges effectively reduce unwanted tastes, odors and chlorine from your drinking water. They are designed to allow maximum contact between the water and carbon, ensuring maximum adsorption. The construction of the cartridge allows water to enter at one end and pass through the entire length of the cartridge, while an internal expansion pad minimizes channeling or bypass. Before the water exits the cartridge, a 20-micron post filter helps remove carbon fines and other suspended particles from the filtered water. Order a case and save even more.
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    $12.99 Special Price $8.99 As low as $6.49
  14. 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.
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    $17.99 Special Price $12.99 As low as $10.99
  15. 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
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    $8.99 Special Price $4.99 As low as $3.99
  16. 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.
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    $14.99 Special Price $9.99 As low as $7.99
  17. 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.
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    $5.99 Special Price $3.39 As low as $2.75
  18. 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
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    $19.99 Special Price $12.99 As low as $10.99

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.





* KX Matrikx is the registered trademark of KX Matrikx, the manufacturer of KX Matrikx 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 KX Matrikx. 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 KX Matrikx 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 KX Matrikx under sink drinking water system equipment.