Looking to install a mini split yourself? DIY kits with pre-charged R-454B...

https://wiki-stock.win/index.php/Is_a_12,000_BTU_Mini_Split_Too_Big_for_450_Sq_Ft%3F

Looking to install a mini split yourself? DIY kits with pre-charged R-454B quick-connect linesets make it simple—no vacuum pump needed and you don’t need an EPA Section 608 license. Plus, 9K and 12K units come with easy 115-volt plug-in options