If you don't have certification, you will need to signal a press release using your whole authorized name stating you indent to resell the refrigerant to a certified person. Do-it-yourself. Refilling the refrigerant all by yourself is not really advised for equally health and fitness and environmental reasons. Some states https://archerqiyap.aboutyoublog.com/29491851/the-smart-trick-of-buy-r407c-refrigerant-that-nobody-is-discussing