【function】 Our compressor quick connector has a built-in valve that shuts off the air when changing tools, making the replacement process safer and faster. 【Size】1/4" BSP threaded pipe connection: 1 female thread connection, 1 female thread connection, 4 male thread connections, 4 female thread connections. 【Easy to use】When using, just insert the connector straight in, and push the snap ring all the way back to disconnect after use. No need for tedious operations and improve work efficiency. 【Robust and durable】Heat treated hardened steel air duct connectors with nickel plated surface, strong and durable, rust and corrosion resistant, ensure long term use. 【Wide application】These compressor connectors are suitable for pneumatic tools, air compressors, air hoses, etc. and are suitable for 1/4" BSP ports and connectors. Reduce the accidental disconnection of the air line when changing air lines. Tools.