Metallic quick connectors and fittings for pipes and hoses used in fluid applications; metal quick connectors and fittings for pipes and hoses used in fluid applications, namely, for refrigerant lines for the transmission of refrigerant; metallic pipe and hose connectors and fittings for fluid applications; metal pipe and hose connectors and fittings for fluid applications, namely, for refrigerant lines for the transmission of refrigerant; metallic pipe and hose connectors and fittings for eq...