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John Guest

John Guest U-Bend - 3/8

Part Number: PIUB12S
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The John Guest U-Bend is used to connect a parallel return line using one fitting. Manufactured in gray acetal with food grade nitrile O-Ring, these fittings are suitable for foodstuff and potable liquids. They are also suitable for air and inert gases therefore can be used for CO2 and nitrogen beverage gas lines, pneumatics, vacuum as well as other applications.


  • Push-fit Technology creates reliable, leak-free connections
  • Used to connect a parallel return line using one fitting
  • Features a long handle with quarter turn to open or close
  • Compatible with plastic or copper OD sized tubing
  • Food Quality and suitable for potable liquids and pure water applications
  • Can be used for compressed air and pneumatic applications
  • Acetal body with Nitrile O-ring
  • Made with lead free materials

Working pressure and temperature: 

  • Max. 150 psi at 68° F
  • Max. 100 psi at 150° F

JG gray acetal is suitable for both compressed air and water (buna-n seal).

California residents Prop 65 Warning
This product contains materials known to the State of California to cause cancer and birth defects or other reproductive harm. www.p65warnings.ca.gov