Thinking about a DIY mini split install? These systems use pre-charged R-454B...
https://www.paste-bookmarks.win/thinking-about-installing-a-mini-split-yourself-diy-systems-with-pre-charged-1
Thinking about a DIY mini split install? These systems use pre-charged R-454B quick-connect linesets, so you skip the vacuum pump and EPA Section 608 license hassle. The 9K and 12K models plug into standard 115V outlets