The vessel generally used in connection with refrigerant recovery is:

The vessel generally used in connection with refrigerant recovery is a recovery tank. This specialized tank is designed to temporarily store refrigerants that have been recovered during maintenance or repair work. Recovery tanks are built to handle the high pressures associated with refrigerants and are equipped with features that ensure safe handling and maintenance of the refrigerants being recovered.

Using recovery tanks helps prevent the release of refrigerants into the atmosphere, which is crucial for environmental protection. They are constructed to comply with regulatory standards for the safe storage of refrigerants, ensuring that they do not pose a risk during transport or storage. This ties into the broader practices involved in refrigerant management, where it's essential to handle these substances responsibly.

Other containers such as transport containers may refer to general storage units for various substances and are not necessarily designed specifically for refrigerant recovery. Pressure relief vessels serve a different purpose related to safety during processes involving pressurized fluids. Condenser units are components in refrigeration systems that function to remove heat from the refrigerant but do not serve the specific role of recovering refrigerants. Therefore, the recovery tank is the appropriate choice for refrigerant recovery.