Excellent durability and high efficiency check valve-This three-way check valve is pressure- and -, providing high performance and reliability. Three-way check valve for pipe connection-This three-way check valve is a perfect tool for air compressors and has 3 external thread connections for pipe connections, pneumatic tanks and compressor piston pumps. Designed with a convenient threaded connection end-this joint check valve is easy to install on the threaded connection end. The perfect tool for check valves-this check valve is an excellent replacement for old or check valves in air compressors. No installation tools required-this check valve threaded installation is quick and easy, and no tools are required. very happy.<br><br>Applicable medium: air Pressure environment: normal pressure Thread: Nominal of external thread Weight: about 81 grams colour:Yellow Material:all copper size:Valve port: 20mm 16mm 10mm<br><br>Package Contents: 1 x check valve<br><br>Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.