T-piece John-Guest 3/8″x1/4″ | DVGW tested


  • The John Guest angle shut-off valve has been specially developed for connection to angle valves.
  • It enables the simple and quick water connection of drinking water systems, water ionizers, table water devices, coffee machines, etc.
  • With integrated check valve (prevents backflow into the water network)
  • L x W x H: 82mm (brass ends) x 70mm x 33mm
  • DVGW-tested security, see certificate number at the bottom of this .pdf
  • Please select the correct connection size in the selection window, either 1/2" or 3/8" cold device connection with 1/4" (6,35mm) Quick Fit hose connection:

Tee by John-Guest | either 3/8″ x 1/4″ (6,35mm) Quick Fit connector or 1/2” x 1/4” (6,35mm) or 3/8″ x 3/8″ (9,52mm), (DVGW tested)

Install John Guest T-piece firmly onto the cold water pipe

Dismantling/uninstalling John Guest's T-piece from the cold water pipe

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