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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Boat & RV Water Filters

Boat & RV Water Filters

RV and Boat replacement water filters for marine or recreational vehicles - Aquatec RV Water Pumps
  1. Omnifilter-RV1 Large Diameter Inline Carbon/Sediment RV Filter with 12' Hose
    Omnifilter-RV1 Large Diameter Inline Carbon/Sediment RV Filter with 12' Hose

    The RV1 water filter is an outdoor water filter for use in motor homes, campers, boats and gardens. It reduces chlorine taste & odor, and sediment including sand and dirt. The RV1 can connect to the water supply using any typical garden hose

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    $67.20 Special Price $44.95
  2. Omnifilter CBF2 Easy Change Drinking Water System With Faucet
    Omnifilter CBF2 Easy Change Drinking Water System With Faucet
    Omnifilter CBF2 Easy Change Drinking Water System. Includes faucet, filter cartridge, tubing, adaptor and filter head with quick connectors. Uses Omnifilter 1100R Replacement GAC Water Filter Cartridge. For only a few dollars more than the cost of the replacement filter you get the filter holder and new lead-free faucet included. No more buckets, no mess, twist on,twist off. Reduces bad taste and odor, chlorine,sediment,lead,cysts such as cryptosporidium and Giardia, turbidity, atrazine,lindane and Particulates Class 1. Tremendous value. This is a limited offer so order now! Order a second one as a gift and save even more.
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    $69.99 Special Price $49.99 As low as $46.99
  3. Culligan IC-1000 Inline Water Filter System
    Culligan IC-1000 Inline Water Filter System

    Culligan IC-1000 Inline Water Filter System Includes 1000R replacement filter cartridge and 1/4" tube quick connection filter head. Installs inline and allows simple filter changes via this quick change head design. Easy to install inline for a refrigerator icemaker. Use in a RV for very simple annual filter replacements with very little maintenance. #155785  Reduces lead, lindane, atrazine, chlorine taste and odor, bad taste and odor, and sediment. Reduces Cryptosporidium and Giardia cysts.

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    $49.99 Special Price $39.99 As low as $36.99
  4. Culligan ® 1000R # 155785 Replacement GAC Water Filter Cartridge
    Culligan ® 1000R # 155785 Replacement GAC Water Filter Cartridge
    Culligan ® 1000R # 155785 Replacement GAC Water Filter Cartridge. For SY-1000, IC-1000, SY-1000S and RV-1000. Reduces lead. cryptosporidium, giadia cysts, lindane, atrazine, sediment, bad tastes, odor and chlorine. Filter life of 6 months or 500 gallons. SPECIAL OFFER FOR A LIMITED QUANTITY. OMNIFILTER 1100R replacement filter cartridge. Pentair Corporation owns both Culligan and Omnifilter and these replacement water filter cartridges are fully interchangeable. Save big while we have them.
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  5. Culligan 750R
    Culligan-750R
    For use with the Culligan Easy-Change Inline Refrigerator Water Filter IC 750, this cartridge improves the taste of water and ice while reducing chlorine odor, lead, mercury, copper, zinc and more. Replace the cartridge every 12 months with no messy hassle, fittings or buckets—just twist off the old one and twist on the new one.
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    $24.99 Special Price $19.99 As low as $17.99
  6. Culligan #145808 RVF-10 Recreational Vehicle Or Boat Filter - Garden Hose Attachement
    Culligan #145808 RVF-10 Recreational Vehicle Or Boat Filter - Garden Hose Attachement
    Culligan #145808 RVF-10 Recreational Vehicle or Boat Filter - Garden Hose Attachement. The RVF-10 system is designed to reduce foul tastes, odors and sediment from potable drinking water. This system includes 3/4" flexible hose couplings, integrated pressure relief valve and the NCP-10 replacement cartridge.
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  7. Pentek NCP-10 # 155367 NCP10 Taste & Odor GAC Carbon Replacement Water Filter Cartridge
    Pentek NCP-10 # 155367 NCP10 Taste & Odor Water Filter Compatible With Culligan / Ametek / US Filter / Plymouth / Kleen Plus / American Plumber / Bruner & Many Other Brands
    Ametek / US Filter / Plymouth / Pentek / Culligan / Kleen Plus / American Plumber / Bruner / Many Other Brands Compatible NCP-10 Pleated Carbon-Impregnated Polyester 10 Micron Taste & Odor Water Filter. A nice upgrade from the C-1 (155002). 9 3/4" long X 2 1/2" diameter. 24 per case, sold individually. Ametek # 155367 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. Unlike cellulose cartridges, NCP Series cartridges are resistant to both bacterial attack and biofilm buildup allowing them to be used for municipal and non-chlorinated water applications. Pleats provide additional surface area for high dirt-loading capacity, while maintaining minimal pressure drop. This combination of pleated polyester media and carbon filtration produces an outstanding filter cartridge with extended service life. NCP Series cartridges are an excellent polishing filter, and are ideal for post reverse osmosis and well water applications. Order a case and save even more.
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    $16.99 Special Price $13.99 As low as $11.99
  8. Pentek ® 244047 SlimLine Water Filter Housing Mounting Bracket Kit
    Pentek ® 244047 SlimLine Water Filter Housing Mounting Bracket Kit
    Pentek ® 244047 SlimLine Water Filter Housing Mounting Bracket Kit. For all 5", 10" & 20" Pentek SlimLine Water Filter Housings. Bracket and screws.
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    $9.99 Special Price $6.99 As low as $4.29
  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 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
  10. 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
  11. AQUATEC- RV Water Pump - ES Series 55 Aquaject - AES For RV Use - 2000
    Aquatec RV Water Pump - ES Series 55 Aquajet AES For RV Use
    Aquatec RV ES Series Aquajet Water Pump For RV Use. 55 Aquajet AES. • Smoother flows without rapid cycling • Automatic adjustment for easier installation • Improved safety features • Greater flows higher pressures • Virtually silent operation.
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    $269.99 Special Price $199.99 As low as $184.99
  12. Hand Pump For Bottled Water - Hydro Pump
    Hand Pump For Bottled Water - Hydro Pump

    Hand Pump For Bottled Water - NW-500 Hydro Pump. The most dependable and compact pump on the market. Durable construction. Easy to use. Fits 3, 5 and 6 gallon screw and snap cap water bottles. FDA approved materials. Easy to install. Eliminates the need to lift and tip heavy water bottles. Bottle not included. Built in dispensor, eliminating the need to have a separate dispensor. Makes a great gift. Buy 2 or more and save even more. This is a top quality hand pump.

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    $36.99 Special Price $19.99 As low as $12.99
  13. TDS Meter - Test For Total Dissolved Solids In Water - Reverse Osmosis Membrane Tester - TDS Meter
    TDS Meter - Test For Total Dissolved Solids In Water - Reverse Osmosis Membrane Tester - TDS Meter
    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
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    $49.99 Special Price $37.99 As low as $17.99
  14. 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
  15. 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
  16. 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
  17. 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
  18. 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
  19. 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
  20. 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
  21. 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
  22. 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
  23. 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
  24. 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
  25. 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

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.