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.

LOW PRICES and FAST SHIPPING SINCE 1999 !

99.5% Of All Items In Stock For Same Day Shipping!

Valves

Valves

Valves For Reverse Osmosis RO And Pure Water Filtration Systems

  1. JOHN GUEST- PPSV040808W- In-Line Shut-Off Valve- 1/4''- 1000
    John_Guest_shut-off-valve (John Guest PPSV040808W In-Line Shut-Off Valve 1/4" Tub...
    John Guest PPSV040808W In-Line Shut-Off Valve 1/4" Tube X 1/4" Tube Learn More
    $9.99
  2. JOHN GUEST- PPSV041212W- In-Line Shut-Off Valve 3/8'' - 1000
    John_Guest_shut-off-valve-3-8 (John Guest PPSV041212W In-Line Shut-Off Valve 3/8"...
    John Guest PPSV041212W In-Line Shut-Off Valve 3/8" Tube X 3/8" Tube Learn More
    $10.99
  3. C Style Self Piercing Tap Valve
    C Style Self Piercing Tap Valve
    C Style Self Piercing Tap Valve With 1/4" Comp - Used on copper lines instead of the "screw together" easy tap described above. Make sure to install it in-line after the cold water shut-off valve. Mount and tighten the self piercing valve on the copper line in a easy to reach place. Turn the saddle valve clockwise all the way in. This drives the sharp end of a sharp metal pierce into the copper tubing and will pierce a tiny hole. This is the "OFF" position for your new RO system. Turn counter-clockwise to open and turn on. Learn More
    $14.99 Special Price $9.99 As low as $7.49
  4. JOHN GUEST- PPSV501222W- Tank Shut-Off Valve- 3/8'' - 1000
    John-Guest-tank-valve-3-8X1-4 (John Guest PPSV501222W Tank Shut-Off Valve 3/8" Tu...
    John Guest PPSV501222W Tank Shut-Off Valve 3/8" Tube X 1/4" FNPT 90 Learn More
    $12.99
  5. Tank Ball Valve with Jaco Compression Fittings - 3/8'' Size- 1000
    Replacement Water Tank Valve With Jaco Fittings
    Replacement Water Tank Valve With Jaco Fittings. Fits all standard tanks. Very easy to use. Learn More
    $13.99 Special Price $9.99 As low as $6.39
  6. Easy Tap Water Feed Valve for Water Filter Systems - 2000
    Easy Tap Water Feed Valve
    Easy Tap Water Feed Valve - High flow tap valve. Follow the pipe up from the shut-off valve toward faucet until you reach a coupling nut (may be all the way up to the faucet). Unscrew coupling nut. Screw brass easy tap onto previous location of coupling nut. Hand tighten and then one more complete turn with wrench. Re-attach water line coupling nut to easy tap. The valve on the side of the easy tap is the shut off valve for your new RO system. If the handle is turned clockwise all of the way, this is the "OFF" position for your new RO system. Counterclockwise all of the way is the "ON" position. Learn More
    $19.99 Special Price $12.99 As low as $9.99
  7. JOHN GUEST- PPSV500822W- Tank Shut-Off Valve 1/4'' - 1000
    John-Guest-tank-valve (John Guest PPSV500822W Tank Shut-Off Valve 1/4" Tube X 1/4...
    John Guest PPSV500822W Tank Shut-Off Valve 1/4" Tube X 1/4" FNPT 90 Learn More
    $11.99
  8. John Guest Speedfit Water Tank Valve For Reverse Osmosis Systems
    John Guest ® Speedfit Tank Valve For Reverse Osmosis Systems
    John Guest ® Tank Valve For Reverse Osmosis Systems - These valves are manufactured in white polypropylene with food grade EPDM 'O' Rings for use with potable water. This fitting is made of the following components: The body is produced in polypropylene. PPSV500822W and PPSV501222W. Learn More
    $17.99 Special Price $11.99 As low as $9.99
  9. John Guest inline water shut off valve
    John Guest ® inline shut off valve
    John Guest ® inline shut off valve - Easy to install push in quick connectors. PPSV040808W and PPSV041212W Learn More
    $17.99 Special Price $9.99 As low as $7.99
  10. Inline Water Shut Off Valve- 3/8'' SMC-1000
    Shut Off Valve 3/8 - Inline Water Shut off Valve-3/8' SMC
    Shut Off Valve 3/8 - Inline Water Shut off Valve-3/8' SMC Learn More
    $10.99
  11. Inline Water Shut Off Valve-1000
    Inline Water Shut Off Valve - Great For Refrigerators And Ice Machines
    Inline Water Shut Off Valve With 1/4" or 3/8" Quick Connect Fittings - Very easy to install and use. - Great for refrigerators, UV systems, chillers, hot pots, coffee machines, ice machines etc. Learn More
    $14.99 Special Price $9.99 As low as $6.99
  12. JOHN GUEST- Angle-Stop-Valve - 3-8 - ASV121212W / ASVPP2LF - 1000
    John-Guest-Angle-Stop-Valve-3-8 ASV121212W / ASVPP2LF
    John Guest ASV121212W / ASVPP2LF Angle Stop Adapter Valve 3/8" Male Comp X 3/8" Male Comp X 3/8" Tube Learn More
    $13.99
  13. Inline Check Valve - Back Flow Prevention - John Guest Speedfit Quick Connection 1/4SCV and 3/8SCV
    Inline Check Valve - Back Flow Prevention
    Inline Check Valve - Back Flow Prevention - Check Valve- 1/4" quick connect - one way flow, Easy to install. 1/4SCV and 3/8SCV or John Guest Elbow Fitting for Membrane Housing. Learn More
    $27.99 Special Price $19.99 As low as $17.99
  14. John Guest Angle Stop Water Valve
    John Guest ® Angle Stop Water Valve
    John Guest ® Angle Stop Water Valve - Makes installation a snap. Very simple to use. PPASV121208W and PPASV121212W Learn More
    $19.99 Special Price $12.99 As low as $10.99
  15. Filtamate 85 PSI Inline Pressure Regulator
    Filtamate 85 PSI Inline Pressure Regulator
    Filtamate 85 PSI Inline Pressure Regulator. 1/4" Quick Connectors. Great inline pressure regulator to prevent excessive pressure from reaching your RO Reverse Osmosis system or other sensitive water equipment. Helps prevent water spikes, or surges, that can lead to system failure or leaks. Learn More
    $34.99 Special Price $22.99 As low as $19.39
  16. Float Valve- For Water Tank Level- 2000
    Float Valve
    Float Valve - Nickel Plated. Choose either Vertical or Horizontal mount. 1/4" tube compression connector. Excellent for aquarium owners or orchid growers. If you use a static atmospheric tank to collect your RO water and want a way to automatically turn off the RO system when the tank is full, this float valve is for you. When the valve closes it will trigger the auto shut off valve ASO in RO systems and turn it off. The float measures approximately 3" long x 1 3/8" diameter. Easy to install and use. Learn More
    $39.99 Special Price $24.99 As low as $19.99
  17. Float-Valve-Horizontal - 1/4 - 2000
    Float Valve
    Float Valve - Nickel Plated. Choose either Vertical or Horizontal mount. 1/4" tube compression connector. Excellent for aquarium owners or orchid growers. If you use a static atmospheric tank to collect your RO water and want a way to automatically turn off the RO system when the tank is full, this float valve is for you. When the valve closes it will trigger the auto shut off valve ASO in RO systems and turn it off. The float measures approximately 3" long x 1 3/8" diameter. Easy to install and use. Learn More
    $24.99
  18. Sea-Tech-Valve-3551-0808-1000
    Sea Tech ® Valve 3551-0808 Quick Connect Fitting For GE Merlin RO System
    Sea Tech ® Valve 3551-0808 Quick Connect Fitting For GE Merlin RO System. Connects the GE Merlin reverse osmosis system to the inlet feed water line. 1/2" in and out. Simple to install. Learn More
    $18.99 Special Price $12.99 As low as $9.49
  19. Sea-Tech-Valve-3550-1008-1000
    Sea Tech ® Valve 3550-1008 Quick Connect Fitting For GE Merlin RO System
    Sea Tech ® Valve 3550-1008 Quick Connect Fitting For GE Merlin RO System. Connects the GE Merlin reverse osmosis system to the inlet feed water line. 1/2" Tube in and out. Simple to install. Learn More
    $21.99 Special Price $14.99 As low as $9.99
  20. Self Piercing Feed Water Saddle Tap Valve
    Self Piercing Feed Water Saddle Tap Valve
    Self Piercing Feed Water Tap Valve With 1/4" Comp - Saddle valve used on copper lines instead of the "screw together" easy tap described above. Make sure to install it in-line after the cold water shut-off valve. Mount and tighten the self piercing valve on the copper line in a easy to reach place. Turn the saddle valve clockwise all the way in. This drives the sharp end of a sharp metal pierce into the copper tubing and will pierce a tiny hole. This is the "OFF" position for your new RO system. Turn counter-clockwise to open and turn on. Learn More
    $8.99 Special Price $6.99 As low as $3.99
  21. Automatic Shut Off Valve - With Quick Connections for Reverse Osmosis RO System - ASO ASV - 2000
    Automatic Shut Off Valve with quick connections for reverse osmosis RO system - ASO ASV
    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
    $29.99 Special Price $20.99 As low as $16.99
  22. Vu-Flow Purge Valve
    Vu-Flow Purge Valve
    Vu-Flow Purge Valve. 1/2" FNPT - This Purge Valve fits all models of Vu-Flow sand and screen sediment filters. Learn More
    $18.99 Special Price $13.99 As low as $10.99
  23. Pentek 151039 Pressure Relief Valve Button Kit
    Pentek 151039 Pressure Relief Valve Button Kit
    Pentek 151039 Pressure Relief Valve is a Replacement Pressure Relief Button Kit that works with whole house housings with pressure release buttons. Learn More
    $8.99 Special Price $4.99

Be sure to check our Parts Departmentfor important parts such as TDS Testers, Replacement Tanks, O-rings,Housing Wrenches and more parts for your pure water filtration system.