R12A is NOT R12. It's a substitute with propane and butane not CFC like R12 has.

Canadian law may not allow 134a on a person without a license but that is not the case here in the US.

Check your laws before deciding to swap to some 'alternative' cooling agent.

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1970 Cougar, 3660 lbs
418W, C6, 3.50 posi, slicks & street trim
Best 1/4 mi: 11.24 @ 119 MPH Best 1/8 mi: 7.13 @ 96.32MPH