8mm DIN Rail Connector - 2 Tubes - LE-3379 08 00 Components are similar in principle to the electrical connectors found in control panels and are used to rationalise cabling and to assist trouble shooting. Used alongside electrical connectors, Legris DIN rail connectors provide similar facilities for pneumatics circuits, and are mounted on the same rail profile which allows electrics and pneumatics to run side by side. All tube connections are Legris push-in fittings for plastic tubing.