Mate for the quick connection with a spring INTERTOOL PT-1836 is used for mounting on spiral and straight air hose to provide quick connection to the pneumatic compressor or air line. They are also used to repair damaged hoses and replace the failed connectors. Features Spring perfectly protects the hose from the fracture and crease at the junction, without reducing its mobility. Snap-on nut securely presses the hose and do not allow air to pass. The complete absence of plastic parts. Steel housing provides maximum operational time Connector. Simplicity of design allows for very easy and quick to install connectors on the hose This connector provides a reliable and strong connection to the compressor or air line and is suitable for polyurethane, nylon and other hoses with an inner diameter of 6-7 mm and an outer diameter of 10 mm. Installation instructions on the hose 1. Put on a hose of the connector (with spring and clamping nut) so that the nut was closer to the edge. 2. Take a dip tube and its edge in hot water (at a temperature close to boiling) for a few seconds. 3. Place the heated hose to the edge of the cone catch on another part of the connector before carving. 4. securely connect the first and second part of the connector presser nut.