Thinking about installing a mini split yourself? With pre-charged R-454B...

https://post-wiki.win/index.php/What_Size_Mini_Split_for_a_900_Sq_Ft_Basement_or_Great_Room%3F

Thinking about installing a mini split yourself? With pre-charged R-454B quick-connect linesets, you skip the vacuum pump and EPA license hassle. Plug in the 9K or 12K units using standard 115V outlets