Thinking about a DIY mini split? These systems come with pre-charged R-454B...
https://www.random-bookmarks.win/thinking-about-a-diy-mini-split-install-our-systems-include-pre-charged-r-454b
Thinking about a DIY mini split? These systems come with pre-charged R-454B quick-connect linesets, meaning no vacuum pump or EPA Section 608 license is needed. The 9K and 12K models even offer easy 115V plug-in options