AC R1234YF R134A Gauge Set, Automotive Manifold Gauge Compatible with R1234YF R134A and R404A Refrigerants, Works on Car Freon Charging and Evacuation. Refrigerant Application R134A, R12, R22, R502 R134A, R12, R22, R502 R410A, R134A, R12, R22 R1234YF, R134A, R404A R1234YF, R134A R1234YF, R134A, R404A.