Durability and high efficiency check valve - This three-way check valve compressor is pressure resistant and corrosion resistant, providing high performance and reliability. Three-way check valve compressor for pipe connection - This three-way check valve is a perfect tool for 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 compressor check valve is easy to install on the threaded connection end. The perfect tool for compressor check valves - this check valve is a replacement for old or damaged check valves in compressors. No installation required - this compressor check valve threaded installation is quick and easy, and no tools are required. Very satisfied. Applicable medium: Pressure environment: normal pressure Thread: Nominal diameter for external thread Weight: approximately 81 grams Color: Yellow Material: all copper Size: Valve port: 20mm 16mm 10mm Package content: 1 x compressor check valve 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 to differ slightly from the real thing. The allowed measurement error is +/- 1-3 cm.