The 3000 Series couplings are designed for high pressure applications. The coupler sleeve and nipple body must be manually threaded togetrher to make the connection.
Note: Protective dust plugs and caps play a crucial role in the life of a quick coupling and no purchase of a hydraulic quick coupling is complete without the selection of an appropriate dust plug and cap. When ordering, dust plugs are located directly below the coordinating size female body and dust caps are located directly below the coordinating size dust cap.