Can R1234yf. In order to access the refrigerant, you will need a R1234yf left hand thread can taper. EPA Acceptable use and regulations for refrigerant R1234yf;.
Honeywell R1234YF HFO-1234yf Automotive Refrigerant - 8oz Can - 4 Pack
R1234yf, 3 Lbs., Refrigerant with Moisture Remover & Acid Neutralizer Colder Air
Robinair, R1234yf, 10 Lbs., Refrigerant made for the Robinair Charging Stations
Envirosafe Arctic Air Refrigerant Support for R1234yf Systems-3 Cans - RH Thread
R1234yf, 10 Lbs., Refrigerant w/Moisture Remover & Acid Neutralizer Colder Air
R1234YF Refrigerant Can Tap Kit Self Sealing Puncture Type For AC Maintenance