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 ONLINE SINCE 1999 !

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

Pentek Carbon 20" X 2 3/4" Water Filters

Pentek Carbon 20" X 2 3/4" Water Filters

 

Ametek, Pentek, US Filter, Plymouth, Culligan, American Plumber & Kleen Plus ® Carbon Replacement Water Filters For Filtration Systems - 20" X 2 7/8" Diameter Cartridges

GAC Garnular Activated Carbon
Carbon Block
Radial Flow Carbon
Carbon Impregnated
Taste and Odor
Iron reduction
Sulfur Reduction

  1. Pentek C1-20 # 155597 C-1 Taste & Odor 20 Inch Replacement Water Filter
    Pentek C1-20 # 155597 C-1 Taste & Odor 20 Inch Replacement Water Filter
    Pentek C1-20 # 155597 C-1 Taste & Odor 20 Inch Replacement Water Filter Compatible With Culligan / Ametek / US Filter / Plymouth / Kleen Plus / American Plumber / Bruner And Many Other Brands. C1 Activated Carbon-Impregnated Cellulose 5 Micron 20 Inch Taste & Odor Water Filter. 20" long X 2 1/2" diameter. 14 per case, sold individually. Ametek # 155597 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.
    Learn More
    $27.99 Special Price $19.99 As low as $16.99
  2. Pentek NCP-20 # 155397 NCP20 GAC Carbon Replacement Water Filter Cartridge
    Pentek NCP-20 # 155397 NCP20 GAC Carbon Replacement Water Filter Cartridge

    Pentek NCP-20 # 155397 NCP20 GAC Carbon Replacement Water Filter Cartridge Compatible With Culligan / Ametek / US Filter / Plymouth / Kleen Plus / American Plumber / Bruner & Many Other Brands. 10 Micron Pleated Carbon Impregnated Polyester Water Filter. 20" long X 2 1/2" diameter. 14 per case, sold individually. Ametek # 155397 NCP Series cartridges are constructed from a carbon impregnated non-cellulose media. They offer sediment filtration, as well as taste, odor and chlorine reduction in one cartridge.  Order a case of 14 and save even more.

    Learn More
    $33.99 Special Price $24.99 As low as $20.99
  3. Pentek GAC-20 # 155111 GAC20 GAC Carbon Replacement Water Filter Cartridge
    Pentek GAC-20 # 155111 GAC20 GAC Carbon Water Filter Compatible With Culligan / Ametek / US Filter / Plymouth / Kleen Plus / American Plumber / Bruner & Many Other Brands
    Pentek GAC-20 # 155111 GAC20 GAC Carbon Water Filter Compatible With Culligan / Ametek / US Filter / Plymouth / Kleen Plus / American Plumber / Bruner & Many Other Brands. Granular Activated Carbon Water Filter. 20" long X 2 7/8" diameter. 6 per case, sold individually. Ametek # 155111 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.
    Learn More
    $33.99 Special Price $24.99 As low as $19.99
  4. PENTEK- CC-20 #155138 - GAC Carbon Replacement Water Filter - 1000
    Pentek CC-20 # 155138 GAC Carbon Replacement Water Filter CC20
    Pentek CC-20 # 155138 GAC Carbon Replacement Water Filter CC20 Compatible With Culligan / Ametek / US Filter / Plymouth / Kleen Plus / American Plumber / Bruner & Many Other Brands. Granular Activated Carbon Water Filter. 20" long X 2 7/8" diameter. 6 per case, sold individually. Ametek # 155138 CC Series granular activated carbon cartridges are an excellent choice to reduce unwanted taste, odor, chlorine and certain VOC's from potable drinking water. They contain coconut shell based activated carbon, which produces drinking water of exceptional taste and quality.
    Learn More
    $28.99 Special Price $21.99 As low as $15.99
  5. Pentek RFC-20 # 155065 RFC20 Radial Flow GAC Carbon Whole House Replacement Water Filter Cartridge
    Pentek RFC-20 # 155065 RFC20 Radial Flow GAC Carbon Whole House Replacement Water Filter Cartridge

    Pentek RFC-20 # 155065 RFC20 Radial Flow GAC Carbon Whole House Replacement Water Filter Cartridge Compatible With Culligan, Ametek, US Filter, Plymouth, Kleen Plus, American Plumber, Bruner and Many Other Brands. Radial Flow Granular Activated Carbon Water Filter. 25 micron outer shell. 20" long X 2 7/8" diameter. 6 per case, sold individually. Ametek # 155065. RFC Series cartridges are constructed with a porous polypropylene outer shell and durable polypropylene end caps. 70 micron outer shell. Sandwiched between the outer shell and the core is a bed of granular activated carbon.  Order a case and save even more.

    Learn More
    $39.99
  6. Pentek EPM-20 # 155635 EPM20 Carbon Block Replacement Water Filter Cartridge
    Pentek EPM-20 # 155635 EPM20 Carbon Block Replacement Water Filter Cartridge

    Pentek EPM-20 # 155635 EPM20 Carbon Block Replacement Water Filter Cartridge Compatible With Culligan / Ametek / US Filter / Plymouth / Kleen Plus / American Plumber / Bruner & Many Other Brands. 10 Micron Carbon Block Water Filter. 20" long X 2 1/2" diameter. 6 per case, sold individually. Ametek # 155635 EPM Series cartridges are a modified version of our "EP Series" cartridge.  EPM Series cartridges are manufactured using a patented process that yields a cartridge with a nominal 10 micron filtration rating, high porosity and greater chlorine removal capacity. Order a case of 12 and save even more.

    Learn More
    $26.99 Special Price $19.99 As low as $16.99
  7. Pentek EP-20 # 155529 EP20 Carbon Block Replacement Water Filter Cartridge
    Pentek EP-20 # 155529 EP20 Carbon Block Replacement Water Filter Cartridge
    Pentek EP-20 # 155529 EP20 Carbon Block Replacement Water Filter Cartridge Compatible With Culligan / Ametek / US Filter / Plymouth / Kleen Plus / American Plumber / Bruner & Many Other Brands. 5 Micron Carbon Block Water Filter. 20" long X 2 1/2" diameter. 6 per case, sold individually. Ametek # 155529 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.
    Learn More
    $34.82 Special Price $22.98 As low as $18.99
  8. Pentek CBC-20 Carbon Block Replacement Water Filter # 155309 CBC20
    Pentek CBC-20 Carbon Block Replacement Water Filter # 155309 CBC20
    Pentek CBC-20 Carbon Block Replacement Water Filter # 155309 CBC20 Compatible With Culligan / Ametek / US Filter / Plymouth / Kleen Plus / American Plumber / Bruner / Many Other Brands. Carbon Block Half Micron Water Filter. 20" long X 2 7/8" diameter. 6 per case, sold individually. Ametek # 155309 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. Excellent prefilter. Order a case and save even more.
    Learn More
    $52.99 Special Price $39.99 As low as $32.99
  9. Pentek SW-1A # 150539 SW1 Slim Line Water Filter Housing Spanner Wrench
    Pentek SW-1A # 150539 SW1 Slim Line Water Filter Housing Spanner Wrench
    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
    Learn More
    $9.99 Special Price $6.99 As low as $4.99
  10. Pentek SW-2 # 150295 SW2 Standard Size Water Filter Housing Sump Spanner Wrench
    Pentek SW-2 # 150295 SW2 Standard Size Water Filter Housing Spanner Wrench Compatible With Culligan / Ametek / US Filter / Plymouth / Kleen Plus / American Plumber / Bruner & Many Other Brands
    Pentek SW-2 # 150295 SW2 Standard Size Water Filter Housing Spanner Wrench Compatible With Culligan / Ametek / US Filter / Plymouth / Kleen Plus / American Plumber / Bruner & Many Other Brands. SW-2 Standard Size Water Filter Housing Wrench. Fits 4 3/4" Standard Size Filter Housings. (Standard Size Housings Use a 4" Diameter "O"Ring) Ametek # 150295 - 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. 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.
    Learn More
    $9.99 Special Price $6.99 As low as $5.49
  11. 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
  12. 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..
    Learn More
    $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.





* Pentek is the registered trademark of Pentair , the manufacturer of Pentek 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 Pentek. 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 Pentek 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 Pentek under sink drinking water system equipment.