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

https://www.bookmark-friend.win/thinking-about-installing-a-mini-split-yourself-with-pre-charged-r-454b

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. You can run 9K and 12K units on simple 115V plug-in options