Thank you for viewing. This product is new and unused. Working Pressure: 1MPa; Thread Size: G6.35mm; Inner Diameter: 6.4mm Dimensions: 27 x 17mm (L * W); Package Contents: 10 x Quick Connectors G6.35mm male thread to 6.35mm tube straight quick connector. This design allows users to quickly and easily connect and disconnect without the need for other tools. Applies to reverse osmosis water purification systems, liquid dispensing, water purifiers, mist systems, ice machines, etc. 4-54