Are these pre-charged?

Thank you for your question. This particular item includes both the refrigerant line set and the control wire. This line set is designed for non-DIY mini split installs, therefore it is not pre-charged. However, there are pre-charged line sets available for compatible MRCOOL DIY units. To view our available MRCOOL DIY mini split systems please Click Here. Some of these system packages include the the wall sleeve and drain line as well as the line set. Please review the products to see what each system includes. For any assistance in this, please give us a call.