1. Gas connection between the welding torch and the welding socket. 2. Quick connectors are easy to install, recommended for 6mm inner diameter hose. 3. Made of high quality brass, has strong wear resistance performance, so easy to use. 4. This water cooled adapter can be used for MIG TIG welding, with better performance. 5. Precision manufacturing, this adapter is manufactured to strictly follow factory quality control. Condition: 100% Brand New Item Type: Water Cooled Adapter Model Number: Connector Color: Red + Blue + Copper Material: Brass Package Contents: 2 x Blue 6mm Connector 2 x Red 6mm Connector 4 x 6mm Male Connector Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in a little different from the real thing. The measurement allowed error is +/- 1-3 cm.