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

https://astro-wiki.win/index.php/What_Three-Zone_Mini_Split_Covers_Up_to_1,800_Sq_Ft%3F

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