PACKAGE INCLUDES: 1 x Air Compressor Check Valves, Interface Diameters are: 201610MM. Please check the compatibility and size before purchasing. HIGH QUALITY: The check valve is made of high quality brass, rust prevention, corrosion resistance, high pressure resistance, high stability and durability, and can be used for a long time. Durable and sturdy: This air compressor check valve is made of high quality brass, durable and sturdy for long-term use. Made of high-strength pressure-resistant brass, the air compressor check valve has high performance and high reliability, which does not require too much maintenance. THREE THREADED CONNECTIONS: The air compressor check valve has three external threaded connections, which can be used for pipe connection, pneumatic tank and compressor piston pump connection. EASY TO INSTALL: The compressor check valve is easy to install and can be easily installed without tools. Removable design, easy to clean inside, more convenient to use. USE: The one-way valve has a 90 degree external thread and is used for air compressors. It is the best replacement for the old or damaged check valve on your air compressor. Please pay attention to the size and model you need before purchasing. We provide quality service 24 hours a day, please feel free to contact us if you have any questions!