Features 【High-quality material】: The air compressor check valve is made of high-quality brass material and excellent processing technology, with high strength and long service life. 【Good sealing performance】: Brass check valve has good sealing performance to prevent gas leakage. 【Perfect Replacement】: Brass valves are used as a great replacement for old or damaged check valves in air compressors. 【Threaded Connector】: One threaded connector is used for pipeline connection, and the other is used for air pressure tank and compressor piston pump. 【Easy installation】: The air compressor check valve is easy to install and has a universal threaded connection end. Features: 1. The air compressor check valve adopts high-quality brass material and excellent processing technology, with high strength and long service life. 2. Brass check valve has good sealing performance to prevent gas leakage. 3. Brass valves are used as a great replacement for old or damaged check valves in air compressors. 4. One threaded connector is used for pipe connection and the other is used for air pressure tank and compressor piston pump. 5. The air compressor check valve is easy to install and has a universal threaded connection end. Specifications: Product Name: Air compressor Check Valve Material: Brass filled Color: Golden Thread Diameter: 9.5-10mm 16-16.5mm  20-20.5mm Total Size: 42 x 39mm Male Thread Size: 1/2" 3/8" Hex Head Size: 18mm Package Included: 1 x Air Compressor Check Valve Note: Please allow a little size error due to manual measurement. Package List