John Guest 1/2″ Stem x 3/8″ Push-In Reduction Connector
A genuine John Guest push-fit reducing connector that steps a 1/2″ push-in fitting down to 3/8″ tubing, letting you run smaller-diameter tubing from a larger supply line without swapping out existing fittings.
SPECIFICATIONS
- Stem size: 1/2″
- Push-in size: 3/8″
- Type: John Guest push-in connector
COMPATIBILITY
- Works with: 1/2″ push-in fitting systems needing a 3/8″ tubing run
INSTALLATION
Simple DIY installation, push-fit design requires no tools.
PRO TIPS
- Cut the tubing end square and deburr it before inserting, an angled or burred cut is the most common cause of push-fit connectors leaking or not gripping properly.
- To remove, push in on the tubing slightly while pressing the collet ring evenly, then pull the tube straight out, pulling at an angle can damage the internal o-ring.








