- Anderson Metals 50062-06 50062 Brass Compression Tube Fitting, Union, is a three-piece construction - nut, sleeve and body with attached insert. - It is easy to disassemble and no flaring tool is required. - Primary uses water, gasoline, oil and vacuum lines. - These fittings contain lead and are not for use with drinking water. - not for use in air conditioners and refrigeration. - These fittings contain lead which is banned by California law AB1953 andVeronica's law. The Anderson Metals 50062-06 50062 Brass Compression Tube Fitting, Union, is a great product for those who are in need of a three-piece construction - nut, sleeve and body with attached insert. This product is easy to disassemble and no flaring tool is required, making it a great choice for those who are looking for an easy to use product. Additionally, the Anderson Metals 50062-06 50062 Brass Compression Tube Fitting, Union, is a great choice for those who need a product that is primarily used for water, gasoline, oil and vacuum lines.