Thinking about a DIY mini split? These systems come with pre-charged R-454B...

https://www.kilobookmarks.win/thinking-about-a-diy-mini-split-install-these-systems-use-pre-charged-r-454b

Thinking about a DIY mini split? These systems come with pre-charged R-454B quick-connect linesets, so you skip the vacuum pump and don’t need an EPA Section 608 license. Plus, the 9K and 12K units plug into any standard 115V outlet