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!

Fittings

Fittings

Jaco ® Fittings and John Guest For Reverse Osmosis & Pure Water Filtration Systems

Page
  1. 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
  2. Jaco ® Nipple Connector Fitting - Male Threads MNPT
    Jaco ® Nipple Connector Fitting - Male Threads MNPT
    Jaco ® Nipple Connector Fitting MNPT - Male threaded Nipple Connects Two Female Threads. Commonly used to connect two filter housings together, or, to connect two female threaded FNPT parts. Learn More
    $6.99 Special Price $3.99 As low as $2.99
  3. 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
  4. John Guest water faucet adaptor with quick connector for poly tube
    John Guest ® water faucet adaptor with quick connector for poly tube
    John Guest ® faucet adapter with quick connector for poly tube - Easy quick connect push in installation. 7/16-24 UNS thread to attach to faucet. Cut the end of the tube square ensuring it is free of score marks and burrs. Slip all of the way into and it locks shut. Easy to remove and reuse. 7/16-24 UNS thread to attach to faucet. Choose your tube size. CI3208U7S and CI3212U7S Learn More
    $8.99 Special Price $4.99 As low as $3.49
  5. 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
  6. John Guest Reducer - 1/4" tube to 3/8" stem (pair) PI061208S
    John Guest ® Reducer - 1/4" tube to 3/8" stem (pair) PI061208S
    John Guest ® Reducer - 1/4" tube to 3/8" stem. Easily connects 1/4" tubing to 3/8" female quick connect push in fittings. (price per pair) PI061208S Learn More
    $11.99 Special Price $6.99 As low as $4.99
  7. John Guest Locking Clips For Speedfit Quick Connectors For Water Tubes
    John Guest ® Locking Clips For Speedfit Quick Connectors For Water Tubes
    John Guest ® Locking clips secure the collet in position on John Guest Quick Connector to prevent an accidental disconnection of the tube. PIC1808R, PIC1812R and PIC1816R. PIC1808R = 1/4 " PIC1812R = 3/8 " PIC1816R = 1/2". Price is for a packet of 10. Learn More
    $7.99 Special Price $4.99 As low as $3.99
  8. John Guest ® Straight Union Connector
    John Guest ® Straight Union Connector
    John Guest ® Straight Union Connector - Connects tube to tube using SpeedFit Quick Connectors. PI201208S , PI0408S , PI0412S Learn More
    $9.99 Special Price $6.99 As low as $5.79
  9. 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
  10. John Guest ® Tee Connector For water Systems - Quick Connectors
    John Guest ® Tee Connector For Water Systems - Quick Connectors
    John Guest ® Tee Connector - Quick Connectors - All equal size connections or one port different for adaption. The body is produced in acetal copolymer. 'O'Rings are nitrile rubber. The collet is produced in acetal copolymer with stainless steel teeth. PI0208S , PI0212S , PI301208S , PI301612S. Learn More
    $14.99 Special Price $9.99 As low as $7.99
  11. John Guest Speedfit Plug In Stem Elbow Quick Connector PI220808S, PI221208S, PI221212S, PI221616S
    John Guest Speedfit Plug In Stem Elbow Quick Connector PI220808S, PI221208S, PI221212S, PI221616S
    John Guest Speedfit Plug In Stem Elbow Quick Connector For Water Filtration Systems. Easy to install and uninstall. Simply insert and this plug in eblow will create a 90 degree elbow corner turn. PI220808S, PI221208S, PI221212S, PI221616S. Learn More
    $6.99 Special Price $3.99 As low as $3.39
  12. JOHN GUEST- PIC1808R Locking Clips 1/4'' - 1000
    John Guest PIC1808R Locking Clips for Quick Connectors 1/4"

    John Guest PIC1808R Locking Clips for Quick Connectors 1/4" for RO reverse osmosis systems and under counter water filter systems..

    Learn More
    $4.99
Page
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.