4mm OD

MettleAir® specializes in high quality kink resistant polyurethane tubing. Our tubing comes sealed and pre-marked with all the necessary information, taking the guesswork out of installation and maintenance. With convenient lengths of 30 meters (98ft) and 100 meters (328ft) options our tubing is suitable for tackling any project. MettleAir® tubing is available in 8 attractive colors; green, yellow, blue, red, black, clear and clear blue. A wide color range makes it easy for you to identify different air lines. We offer our tubing in varying outer/inner diameter sizes as well as the option to choose between metric and imperial sizes. MettleAir® polyurethane tubing works perfect with MettleAir® push to connect fittings for quick, easy, and reliable connections.