The AVALY high pressure quick coupling (VA-QC2H) is for automotive use for refrigerant gas charging in air conditioning systems. Made entirely of metal for durability; they can be used on R134a systems and contain a ¼ Ø flare male thread. They can be connected and disconnected easily and quickly, without letting the refrigerant escape to the outside, and furthermore, the spring depressors do not damage the service valves and can be safely removed. The quality control with which they are manufactured offers a high percentage of tightness, completely eliminating the risk that could exist in the rupture of the connection coupling. This unique design allows you to work without the worry of the hose accidentally disconnecting due to movement.