(1) LARGE 16 oz. Can R1234YF in the new style, self-sealing can.
The top connection is 1/4" male Flare with internal valve core.(self-sealing) which is a unique fitting.
(1) 3605, YF can, left hand threads to YF low-side auto a/c system.
(1) SF5050 Valve already connected to gauge.
*Directly from the EPA Web Site:
EPA Acceptable use and regulations for refrigerant R1234yf;
*Small cans of refrigerant for MVA's, (R1234yf) containing 32 oz. or less, "DO NOT" require any certification.