Features 1、Self-locking structure, easy to use, you can operate by one-handed 2、Made of stainless steel plated pearl nickel material, not easy to rust, it can still be used in humid environment. 3、Full copper core, anti-aging and long service life 4、Thick double-layer sealing ring increase the sealing performance, it is safe and airtight 5、Suitable for PU hoses, easy to connect Specification Condition: 100% Brand new Item Type: Quick Connector Use Fluid: Air Pressure Resistance: 1.32mpa Maximum Working Pressure: 0~0.9mpa Environment and Fluid Temperature: 0~60°C Applicable Hose: PU Hose Material: Stainless Steel Plated Pearl Nickel Connection Method: One-Handed Self-Locking Connection Connector Diameter: 1/4in Thread: G1/4in Package List 1 x Connector