In fairness to all, we don't discuss pricing on the Wall. Thanks for your cooperation.
And so is the subject of properly charging AC units! In this months magazine by RSES, in the RSES Journal, an article by Adolfo Wurts of Fieldpiece Instruments talks about properly charging/testing/adjusting AC units by KNOWING and UNDERSTANDING and APPLYING SuperHeat and SubCooling. WITHOUT WEIGHING IN THE FREON!