Features High quality: Pneumatic quick couplings are mainly used for quick connection of pipes and pneumatic tools, which can be connected or disconnected without tools. Easy to use: This quick connector can withstand high pressure and will not fall. Durable: The thread is printed with special materials and has excellent sealing performance. The connector is made of high-quality materials and has a strong and durable structure. Practical tool: It can rotate 360 degrees, which can meet the requirements of any assembly pipeline. Unique design: The oval ring design makes it easy to disassemble. Specification: Fluid: Air, Vacuum Normal Pressure Range: 0-0.9Mpa Maximum Pressure: 1.32Mpa Low Pressure Range: -99.9-0Kpa Temperature: 0 to 60°C Hole Dia.: 8mm Size: Approx. 3.5*3cm / 1.3*1.2inch Thread Outside Diameter: G1/4''(12.7mm) Weight: 127g Package Includes: 10 x Pneumatic Quick Connector Package List