(1) R1234yf, Refrigerant Auto AC Self-Sealing UV Dye-Charge Lubricant 4 oz. 2 oz. refrigerant R1234yf & 2 oz. UV Dye! Total 4 oz. *New style, EPA REQUIRED, self-sealing cans that have the 1/2" ACME left-hand threads WHICH ARE CONSIDERED, "Unique Fitting", ALSO REQUIRED BY THE EPA. *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. Refrigerant R-1234yf Total 4 oz. This can has the standard R1234yf threads which are called 1/2" ACME Left Hand Threads. Aerosol Dye Charge is fully compatible with mineral, ester and pag oils. For use in 1234YF automotive applications. Highly concentrated dye (fluorescent yellow) In some cases, you can see the dye with the naked eye.
