Save With Quantity Discounts On Replacement Water Filters and Reverse Osmosis Membranes

GoldLine 50 Water Filters

GoldLine 50 Water Filters

Goldline 50, Valueline, IWW, CWW, GWW & Good Water Warehouse Compatible Replacement Water Filters & TFC Reverse Osmosis Membranes - 5 Stage RO Drinking Water System

3 vertical filter housings, one top mounted horizontal inline GAC carbon post filter and one top mounted standard size horizontal RO membrane housing.

The Goldline 50, 5 Stage Reverse Osmosis System with 50 GPD (gallons per day) RO Membrane will make your water delicious and refreshing. Perfect for making hot or cold beverages including coffee, teas, and juices. Intensifies flavors of sauces, soups and holiday dishes by removing metals excess of minerals and salts.

  • 2 inch by 10 inch Inline GAC Postfilter
  • 50 GPD RO Reverse Osmosis Membrane
  • Two Carbon Block Pre-Filters 
  • 5 Micron Osmonics Sediment Prefilter
  • John Guest® quick connect fittings 
  • 3/8” Tubing from tank to faucet
  • Airgap lead free faucet 
  • 3.2 gallon NSF storage tank

Goldline 50 Reverse Osmosis System Brochure
Goldline 50 Reverse Osmosis System Owner's Manual

How To Check Tube & Fitting Size

Reverse Osmosis Parts Department

Learn How To Upgrade The GPD Capacity of Your Reverse Osmosis Membrane

See 5 Stage RO Installation Diagram

  1. GE Osmonics ® Purtrex PX-5-978 Sediment Replacement Water Filter # 93023

    Regular Price: $8.99

    Special Price $5.99

    As low as: $3.99
    GE Osmonics ® Purtrex PX-5-978 5 Micron Sediment Water Pre Filter. True-graded density pure polypropylene depth replacement water filter. # 93023 9 7/8" long X 2 1/2" diameter. 40 per case, sold individually. Order a full case and save even more. Learn More
  2. GGN-10-2-1000

    Regular Price: $12.99

    Special Price $9.99

    As low as: $7.79
    GGN-10-2-BLOCK Premium 10 Micron Carbon Block Filter. Replaces KX Carbon Block Water Filter # 10-250-190-975 Compatible Replacement. 10 Micron nominal Extruded Carbon Block Water Filter. 9 3/4" long X 2 1/2" diameter OD X 1 1/4" diameter ID. 20 per case, sold individually. Order a case and save even more. Learn More
  3. Omnipure CL-10RO-T/33 GAC Inline Replacement Water Filter-1000

    Regular Price: $21.99

    Special Price $11.99

    As low as: $9.49
    Omnipure ® CL-10RO-T/33 inline GAC carbon water filter replacement cartridge. 1/4" (-B) or 3/8" (-C) FNPT (Female National Pipe Thread) connections. Replacement Jaco connectors and John Guest Speedfit connectors availble seperately for 1/4" or 3/8" tube. 25 per case, priced and sold individually. Order a case and save even more. Learn More
  4. Standard Five Stage RO Reverse Osmosis Water Filter Change Kit-1000

    Regular Price: $54.99

    Special Price $43.99

    As low as: $35.99
    Five Stage Standard RO Reverse Osmosis Water Filter Change Kit. One Year Filter Change Kit: (2) 5 Micron Poly Spun Sediment Pre Filters (9 7/8") (2) 10 Micron Extruded Carbon Pre Filter (9 3/4") (1) In-Line GAC Post Filter (Granular Activated Carbon 10") FREE CARBON BLOCK UPGRADE - Our 5 stage filter replacement kit has a second carbon block pre filter to replace the GAC hard shell pre filter that comes standard in most RO systems. The sediment prefilter needs changed twice as often as the carbon filters, so our kit includes an extra one. RO Membranes are sold separately. Learn More
  5. DOW FILMTEC -  TW30-1812-50 RO Reverse Osmosis Membrane #80722-1000

    Regular Price: $84.99

    Special Price $69.99

    As low as: $54.99
    Dow Filmtec ® TW30-1812-50 TFC 50 GPD RO reverse osmosis membrane - standard size 1.75" X 11.75" Part # 80722 Learn More
  6. PENTEK- #151121- Slim-Line Water Filter Housing Replacement - 1000

    Regular Price: $5.69

    Special Price $4.99

    As low as: $3.00
    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. Learn More
  7. Molykote-From DOw Corning- 111 Compound-6 Gram O-ring Silicone Lubricant & Sealant-Dow-111-5-gram-1000

    Regular Price: $5.99

    Special Price $3.99

    As low as: $1.79
    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? Learn More
  8. Pro Products Sani System Water Filtration System Sanitizer

    Regular Price: $7.99

    Special Price $4.99

    As low as: $2.49
    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
  9. TDS Meter - Test For Total Dissolved Solids In Water - Reverse Osmosis Membrane Tester - TDS Meter

    Regular Price: $49.99

    Special Price $37.99

    As low as: $17.99
    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 Learn More
  10. TDS Meter Inline Water Tester DM1 - HM Digital Dual Mode Reading

    Regular Price: $49.99

    Special Price $39.99

    As low as: $19.99
    TDS Water Meter - HM Digital DM1 - 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. 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. Dual Range 0-9990 ppm. Always know if your RO membrane is performing correctly! Learn More

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.

* Goldline ® is the registered trademark of Goldline GWW, the manufacturer of Goldline ® brand water treatment equipment. The replacement filters and membranes listed above are not manufactured or endorsed by Goldline. Rather, these filters and reverse osmosis membranes are manufactured by other companies. While these filters and ro membranes are compatible for use in Goldline 50 ® reverse osmosis systems and water treatment equipment, we make no representation as to whether using these filters and membranes is consistent with the warranty and specifications applicable to Goldline-50 ® water filter equipment. This includes compatible replacement water filters for replacement Carbon Block Water Filters, GAC Carbon Filters, AICRO Inline Post Filters, RO Reverse Osmosis Membranes, Sediment Pre Filters, faucets, Pro-4000 water tanks, valves, pumps, UV Ultraviolet and water testing supplies.