John Guest 3/8″ to 1/4″ Reducing Straight Connector – Push-FitJohn Guest 3/8″ to
John Guest 3/8″ to 1/4″ Reducing Straight Connector. John Guest push-fit reducing straight connector designed to join 3/8″ tubing to 1/4″ tubing. Push-fit reducing straight connector. John Guest part number: PI201208S.