Castrol Universal kit contains the items needed to perform a basic automotive retrofit to R134a. Includes retrofit oil, conversion fittings, service label and instructions.

Kit does not include refrigerant or O-rings.
Small 12 ounce cans of R134a can be purchased locally to avoid the costly hazardous material handling fees associated with the shipment of refrigerants. R134a can be purchased at auto parts retailers without licensing restriction in most localities.

Refrigerant conversion should only be performed by qualified technicians. Inexperienced persons should refer to the appropriate technical manual for proper refrigerant handling procedures, or obtain professional help.