Pcs Compressor Check Valve 3 Port Air Compressor Check Valve 20×16×10mm for Air Compressor Connection Fittings Premium Material: The air compressor check valve is made of high-quality copper, which is strong and durable, has a long service life, is highly rust-proof, has excellent workmanship, good corrosion resistance, and does not require excessive maintenance. External Tee Thread Design: The air compressor check valve has three external thread joints, which can be used for pipe connection, air tank connection, and compressor piston pump connection. Easy to Install and Clean: The air compressor check valve is installed via a threaded connection, which is quick and easy to install and requires no tools. With a removable design, internal cleaning is very convenient and it is more durable. High-performance connector: Our air compressor check valve has pressure resistance, corrosion resistance, high performance and high reliability, strong sealing performance, and can well replace the old or damaged check valve of the air compressor. It is an excellent choice for air compressor accessories. Application: The compressor check valve is used in the fluid system to prevent the reverse flow of fluid, or used in the pneumatic system to prevent the reverse flow of compressed air. Suitable for air compressors, it is the best replacement for the old or damaged check valve of your air compressor. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.