John Guest Metric To Inch Barb Connector (15 mm Stem OD x 1/2” Hose ID) (NC448)

Sale price$2.95 USD

  • Lead free fittings with EPDM o-rings.
  • Designed to use in food industry applications.
  • Available size 1/2" Hose ID and 15mm O.D.


John Guest has a long established reputation as a world leading manufacturer of push-in fittings, tubings, and other fluid control products. They are well-known in the industry for producing consistently high quality products with an ongoing commitment to value engineering and product development.

John Guest manages both their design and manufacturing processes in-house at their modern, custom-built facilities in the United Kingdom. Their quality line of Push-In Fittings have been designed for use with a wide range of industrial water treatment applications and systems including Water Purification, Reverse Osmosis, Ice Makers, Beverage Dispensing, Vending & OCS, R.V. and Marine, Car Washing Systems and many more.

This John Guest inch Superseal fitting features a collet with integrally molded stainless steel teeth and incorporates an additional hand-operated nut and wedge shaped plastic washer to apply extra pressure to the collet and the double o-rings seals. This ensures that the collet teeth bite thoroughly into the tube to provide grip, while at the same time compressing the o-rings to further enhance sealing. Like other John Guest fittings, Superseal is suitable for potable liquids and other food quality applications.


To Connect
Push the tube into the fitting and up to the tube stop.
Pull on the tube to check that it is secure.
To Disconnect
Push the collet square against the fitting. With the collet held in this position the tube can be removed.