What about this R12a that I see out there. I see it can be used in an R12 or 134a system. If used in an R12 system use 1/2 as required.
HC-12a, also called ES-12a, OZ-12a, and Hydrocarbon Blend B, is a "drop-in" replacement refrigerant for Freon-12 and to a lesser extent, R-134a. HC-12a is a...