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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 RO-3000 American Plumber

RO-3000 American Plumber

These Pentek Replacement Filters are compatible with the RO-3000 Reverse Osmosis systems from US Filter / Plymouth / Pentek / Culligan / Kleen Plus / American Plumber ® & Many Other Brand Names of Reverse Osmosis Pure Drinking Water Filtration Systems. The prefilters are to be changed at least every 3 months. 3 are included in the one year kit. The GAC filter is to be changed at least once every 12 months. The membrane should be changed when rejection falls below 80%. Membranes are sold separately. Also see the TDS tester meter below.
  1. Pro Products Sani System Sanitizer
    Pro Products Sani System Sanitizer
    Pro Products Sani System Sanitizer. 0.25 or 0.5 fl. oz. concentrate. 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. 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. Sani-System is now NSF certified! This is the best sanitizing solution available anywhere! Stock up and save. Learn More
    $7.99 Special Price $4.99 As low as $2.49
  2. 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 - The lower the TDS level in the water, the more efficiently your body's cells actually get hydrated by the water that you drink. The higher the TDS levels in the water, the greater the probability of harmful contaminants that can pose health risks or hinder the absorption of water molecules on the cellular level. Simple to use for Reverse Osmosis membrane monitoring. We really like this tester and think that anyone who wants to know about the quality of their water should have one of these TDS Meter Testers to monitor their RO membrane. Learn More
    $49.99 Special Price $37.99 As low as $17.99
  3. 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! Learn More
    $49.99 Special Price $39.99 As low as $19.99
  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

    Learn More
    $5.99 Special Price $3.99 As low as $1.79
  5. PENTEK- RO-3000- #115923-43 D-15- Replacement Water Filter Cartridges- 1000
    Pentek RO-3000 RO-3500 #155923-43 D-15 Replacement Water Filters
    Pentek RO-3000 RO-3500 #155923-43 D-15 Replacement Water Filters. D-15. One year set. 3 combination sediment/carbon prefilters and one GAC granular activated carbon filter. For RO-3000 & RO-3500 Reverse Osmosis Systems by Pentek And Comaptible With Culligan / Kleen Plus / American Plumber / US Filter & Many Others. Membrane sold seperately. Learn More
    $47.99 Special Price $34.99 As low as $29.99
  6. PENTEK - ROM-230T #155854-10 Reverse Osmosis Membrane For RO-3000 System - 1000
    Pentek ROM-230T #155854-10 Reverse Osmosis Membrane For RO-3000 - Pentek / Culligan / Kleen Plus / American Plumber Compatible
    Pentek ROM-230T #155854-10 Reverse Osmosis Membrane Has Been Replaced By The WFO-230. If You Order The ROM-230T You Will Receive The WFO-230 Compatible Replacement Membrane. For Pentek RO-3000 & Compatible With Plymouth / US Filter / Culligan / Kleen Plus / American Plumber & many others. Learn More
    $129.99 Special Price $95.00 As low as $79.99
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.