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

Star SO7RO2

Star SO7RO2

Star SO7RO2 3 stage reverse osmosis system replacement water filters, TFC RO membrane, faucets, tanks, auto shut off valves.

All the parts needed to keep your Star SO7RO2 RO system in top performance. Sediment prefilters, carbon post filters and TFC reverse osmosis membrane replacements. The system originally came with a 3.2 gallon tank.

136253 Compatible Replacement Sediment Water Pre Filters
136254 Compatible Replacement Carbon Block Water Post Filters
136271 Compatible Replacement Reverse Osmosis TFC RO Membrane
136835 Compatible Replacement Filter Housing Sump O-ring
136830 Compatible Replacement Water Storage Tank
136579 Compatible Replacement Air Gap Faucet
136382 Compatible Replacement ASV Automatic Shut-Off Valve
136259 Compatible Replacement RO Membrane Housing
136833 Drain Clamp Saddle - Be sure to order the 3/8 version for Air Gap Faucets

3 Stage Reverse Osmosis System With Air Gap Faucet Connection Diagram


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

Reverse Osmosis System Parts Department

Learn How To See If Your Reverse Osmosis Membrane Needs Replaced

Water Filter and Reverse Osmosis Membrane Change Guide

  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
    THE GGN-10-2-BLOCK IS ON BACK ORDER, IF YOU ORDER THE GGN-10-2-BLOCK YOU WILL RECEIVE THE KX CTO. GGN-10-2-BLOCK Premium Carbon Block Filter. Replaces KX Carbon Block Water Filter # 10-250-190-975 Compatible Replacement. 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. DESAL - TFM-18 RO Reverse Osmosis Membrane #1220188 GE Osmonics -1000

    Regular Price: $69.99

    Special Price $44.99

    As low as: $35.99
    Desal ® TFM-18 GE Osmonics - 18 GPD (gallons per day) TFC Style reverse osmosis membrane - Fits Standard Size Membrane Housing. # 1220188. Pentair ® / GE Osmonics ® 18 GPD Thin Film Reverse Osmosis Membrane Model # TFM-18 - Part # 1220188. Learn More
  4. 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
  5. 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
  6. 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
  7. 4 Gallon Reverse Osmosis Tank GGN-Tank-4-Pro-3.2

    Regular Price: $79.99

    Special Price $49.99

    GGN-Tank-4 - 4 Gallon RO Reverse Osmosis Tank 1/4" NPT Threads. Stainless Steel connector. This is the perfect replacement tank for most residential RO Reverse Osmosis systems. 7 psi Choose White or Blue color. UPC #850901003491 Learn More
  8. 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
  9. GGN-Faucet-AG-P-Chrome Air Gap Faucet-Long Reach-1000

    Regular Price: $39.99

    Special Price $29.99


    Learn More
  10. Automatic Shut Off Valve - With Quick Connections for Reverse Osmosis RO System - ASO ASV - 2000

    Regular Price: $29.99

    Special Price $20.99

    As low as: $16.99
    Auto Shut Off RO 1 With Quick Connections- Automatic shutoff valve for reverse osmosis systems. ASO ASV Easy to use 1/4" OD Tube with quick connections. The valve automatically shuts off production when the tank pressure reaches approximately 65% of the incoming line pressure. Learn More
  11. DRAIN SADDLE - 3/8'' -PDC60438M- 2000

    Regular Price: $11.99

    Special Price $6.99

    Drain Saddle 3/8" Learn More
  12. 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
  13. 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
  14. JOHN GUEST- 1/4'' Natural/ Clear Poly Tube- Clear Replacement Tubing for Water Filter Systems- 1000
    John Guest 1/4" Natural Clear Poly Tube - Clear Replacement Tubing for Water Filter Systems Learn More

* Star Water, & Flint & Walling ® is the registered trademark of Flint & Walling, Inc. of Kendallville, Indiana 46755, the manufacturer of Star Water ® brand water treatment equipment. The replacement filters and membranes listed above are not manufactured or endorsed by Flint & Walling ®. Rather, these filters and membranes are manufactured by other companies. While these filters and membranes are compatible for use in Star Water ® brand water treatment equipment, we make no representation as to whether using these filters and membranes is consistent with the warranty and specifications applicable to Star Water ® equipment.