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

Delta Fresh US-2 Water Filters

Delta Fresh US-2 Water Filters

Delta Fresh US-2 Replacement Water Filters and TFC RO Reverse Osmosis Membranes.

Faucets, water storage tanks, pumps, valves, filters, ro membranes, flow restrictors, undersink chillers and all parts to keep your Delta Fresh RO system in top performance.

DELTA FRESH REVERSE OSMOSIS SYSTEMS USE SLIM-LINE REPLACEMENT O-RINGS AND REPLACEMENT FILTER HOUSING SUMPS. THEY ORIGINALLY CAME WITH A 3.2 GALLON TANK. WE CARRY ALL THE REPAIR PARTS, FAUCETS, TANKS, FILTERS, RO MEMBRANES, VALVES, TUBES AND CONNECTORS FOR ALL OF THE DELTA FRESH REVERSE OSMOSIS SYSTEMS.

Minimum filter change is every 6 months for the sediment prefilter and every 12 months for all carbon filters.  Change more often if your usage is higher than normal or you have bad incoming source water.

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. 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
  2. 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
  3. KX Matrikx ® 10/2 Carbon Block Water Filter # 10-250-190-975 Replacement-1000

    Regular Price: $17.99

    Special Price $9.99

    As low as: $6.99
    KX Matrikx ® 10/2 Carbon Block Water Filter # 10-250-190-975 Compatible Replacement. If you order the 10/2 you will receive the GGN-10-2 as the new replacement as the KX 10/2 has been discontinued by KX Industries. KX Matrikx ® 10/2 # 10-250-190-975 10 Micron nominal and 3 Micron minimum 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
  4. 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
  5. DOW FILMTEC TW30-1812-24 RO #93430 Reverse Osmosis Membrane- 1000

    Regular Price: $89.99

    Special Price $56.99

    As low as: $37.99
    Dow Filmtec ® TFC 24 GPD RO reverse osmosis membrane - standard size 1.75" X 11.75" # 93430 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. Pentek SW-1A # 150539 SW1 Slim Line Water Filter Housing Spanner Wrench

    Regular Price: $9.99

    Special Price $6.99

    As low as: $4.99
    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. 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. Place the handles of two wrenches pointing in opposite directions and it will apply force evenly. Our techs know the tricks. Learn More
  10. 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
  11. 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
  12. GGN-Tank-4

    Regular Price: $79.99

    Special Price $49.99

    GGN-Tank-4- 4 Gallon RO Reverse Osmosis Tank 1/4" NPT Threads 7 psi White color. UPC #850901003491 Learn More
  13. Air Pressure Gauge for Reverse Osmosis Water Accumulator Tanks -1000

    Regular Price: $24.99

    Special Price $17.99

    As low as: $12.99
    Air pressure gauge for reverse osmosis water accumulator tanks - Specially calibrated for reverse osmosis system tanks. Scale from 1 to 20 PSI. Large scale reading over small PSI range allows optimum accuracy. Just like car tires lose air pressure, so does the bladder of your reverse osmosis water accumulator tank. Improper tank air pressure will cause your system to operate improperly. This is a must for all reverse osmosis system owners. Learn More
  14. Replacement Non-Air Gap Pure Water Faucet For Water Filter Systems

    Regular Price: $34.99

    Special Price $19.99

    As low as: $14.99
    Replacement Non-Air Gap Pure Water Faucet - Calif. Low Lead Level Learn More

Easy TDS Membrane Performence Calculator
See If It is Time To Replace Your Membrane

Simply enter your Feed Water TDS and RO Water TDS into the boxes above and click "Submit". The percentage of TDS (total disolved solids) rejection will be displayed. We normally recommend membrane replacement once you drop below 75%. This may vary in areas with high TDS in the feed water.   Let the tap water and reverse osmosis water run for a few seconds before drawing your sample.

See our selection of TDS meters under Water Tests.  Knowing the rejection rate is the only wat to know if it is time to replace your reverse osmosis membrane.




* Delta Fresh ® is the registered trademark of Delta Fresh, the manufacturer of Delta Fresh ® brand water treatment equipment. The replacement filters and membranes listed above are not manufactured or endorsed by Delta Fresh. Rather, these filters and reverse osmosis membranes are manufactured by other companies. While these filters and ro membranes are compatible for use in Delta Fresh ® 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 Delta Fresh ® water filter equipment. This includes compatible replacement sediment water filters, replacement Carbon Block Water Filters, GAC Carbon Filters, AICRO Inline Post Filters, RO Reverse Osmosis Membranes, Sediment Pre Filters, faucets, water tanks, valves, pumps, UV Ultraviolet and water testing supplies.