R134A or R1234YF

TEXA 760R and 760R BUS (for large A/C systems like those on buses and specialist vehicles) and 720R service stations can be configured to work either with the older R134a or with the new R1234yf. You need to specify which refrigerant you plan to work with when you purchase the station, but retrofit kits are available to switch refrigerant at a later date.