Installing a mini split system yourself just got easier with pre-charged...

https://fionafreshmaids.com/is-the-150-250-epa-608-certification-needed-for-diy-mini-splits/

Installing a mini split system yourself just got easier with pre-charged quick-connect linesets that can be up to 16 feet long. You won’t need a vacuum pump or an EPA Section 608 license to handle the refrigerant