Thinking about a DIY mini split? These systems use pre-charged R-454B...
https://www.bookmark-step.win/thinking-about-installing-a-mini-split-yourself-diy-systems-with-pre-charged
Thinking about a DIY mini split? These systems use pre-charged R-454B quick-connect linesets so you skip the vacuum pump and the need for an EPA Section 608 license. Plus, the 9K and 12K units come with easy 115V plug-in options