Attributes . Quick and easy to connect and can be connected to a hose unit with pressures up to 225 PSI; For higher pressure, couplings can easily be equipped with a pressure relief valve that dissipates trapped fluid pressure into the hose coupler without spillage. Reliable- easy to use, easy to maintain and saves time; minimizes the risk of cold burns, spillage and product loss, and health risks; keeps the environment free of hazardous vapors and liquids . Names