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John Guest

John Guest Stackable Stem Tee Polypro - 3/8 OD Stem x 3/8 x 3/8

Part Number: PP531212W
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The John Guest stackable tee makes connecting tubing quick and easy. Stackable Tee’s can be connected to make multiport manifolds or for creating branches from the main flow path. Manufactured in polypropylene with food grade EDPM O-ring, these fittings were developed for the filtered pure water market.


  • Push-fit Technology creates reliable, leak-free connections
  • For making multiport manifolds
  • Compatible with plastic or copper OD sized tubing
  • Connect, disconnect, and reconnect in seconds without tools
  • Food Quality and suitable for potable liquids and pure water applications
  • Polypropylene body with EDPM O-ring
  • Made with lead free materials

Working pressure and temperature: 
  • Max. 150 psi at 70° F
  • Max. 60 psi at 140° F

Note: Not suitable for compressed air and vacuum applications

Polypropylene (PP) fittings are for water only. Material is too soft and seal is EPDM for compressed air applications.

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