Application: 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.