Features [Easy to install] The threaded connection end has exquisite workmanship, tight connection and convenient installation. [Perfect substitute] It is a good substitute for the old check valve of air compressor. [High performance] The check valve has excellent compressive strength, corrosion resistance, high performance and high reliability. [3-way design] 3 external threaded connectors are used for pipe connection, air pressure tank and compressor piston pump. [Simple and fast] Quick and easy installation without any tools. Specification: Material: brass Applicable medium: air Pressure environment: normal pressure Thread: male thread Nominal size: 10*16*20mm/0.4*0.6*0.8in Weight: Approx.81g/2.9oz   Package list: 1 x Air Compressor Check Valve Package List