R134a is refrigerant substitute of R12,can be used in refrigeration applications,including Automotive,Air-Conditioning,refrigerators, central air conditioning ,commercial cooling systems, and it can also be used as aerosol and foaming agent in medical, insecticidal ,cosmetic and cleaning products. Can of 340g, 500g, 800g, 1000g; Disposable cylinder 30LB/13.6kg, 50LB/22.7kg; Recyclable cylinder 400L, 800L, 926L, 1000L; ISO-Tank.