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Re: Is F-12 the same as R-12
Posted to HVAC Forum on 6/8/2018 1 Reply

There is a knock off called Freeze 12, which is a different chemical compound than R-12. Since you said it is an old unit, maybe the F is really an R and faded or distorted?? Old units were no where as efficient as modern A/C units. 28 oz’s is not very much. O... Login to read more.

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