The push-to-connect fittings are made of copper with nickel plating and PBT plastic materials. Nickel plating has corrosion resistance and durability, is not easy to rust. PBT plastic has good high-temperature resistance can maintain stability under high-temperature conditions and is not easy to soften.The thickened sealing structure ensures that the connection is completely sealed to prevent liquid or air escape with a working pressure range of 0-1MPa.The elbow design of the air hose fittings can connect two different sizes of pipes, can meet complex wiring requirements.Quick connect air hose fittings are used to connect various plastic tube types such as PVC, PU, PE, etc. Suitable for equipment or systems such as liquid transportation systems, water treatment equipment, water supply systems, HVAC systems, chemical equipment, etc.