The John Guest 5/16 in. Push-to-Connect Plug (10-Pack) fittings are manufactured from white polypropylene and equipped with EPDM O-rings utilizing John Guest’s push-fit technology to make easy, reliable, leak-free connections. They have been developed to satisfy the compatibility needs for a wide range of applications and can be used on plastic or soft copper tubing. To make a connection, the tube is simply pushed in by hand; the unique John Guest collet locking system holds the tubing firmly in place. Disconnection is just as easy and requires no special tools.

• John Guest push-to-connect technology provides a simple, reliable, leak-free connection
• Manufactured from white polypropylene and equipped with EPDM O-rings
• Can be used with plastic or soft copper tubing
• Lead-free, corrosion free, non-toxic, and more chemically resistant than other plastics