The quick release coupling consists of a coupling plug and a coupling socket, which are connected by pushing the sleeve. This ensures a flush connection between the two coupling halves. Made of high quality materials, Suitable for ISO series "A" quick release couplings, complete with male and female threads, available in NPT thread sizes. The quick release ISO A coupling is used for quick connection and disconnection of hydraulic lines. During coupling in the zero or low pressure range, valves that release or block automatically . Purpose: For agricultural and forestry equipment, such as tractors, trailers, harvesters; Construction equipment and multipurpose vehicles, such as excavators, skid loaders, and hydraulic tools; Mining rigs and industry. If there is pressure in 1 or more hydraulic lines, use suitable under pressure connectors and mining rigs., Weight: 0.84657508608 Pounds, Manufacturer: VIOPDER