EZ Clip fittings offer a simple option for plumbing out or repairing Air Conditioning hose lines on heavy duty trucks, construction equipment, agricultural equipment, and other industrial applications. No special crimper equipment is needed - can be assembled in the field. Many fitting configurations are available, and assembly instructions, videos, and training information is readily available. They are specifically for use on GH001 and EC505 refrigerant hoses. This fitting is a tube braze by 5400 series adapter thread for use with the 5400 series of low air inclusion quick connects designed for mobile air conditioning, refrigerant applications.