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

https://nova-wiki.win/index.php/How_Much_Money_Do_You_Really_Save_Installing_a_Mini_Split_Yourself%3F

Thinking about installing a mini split yourself? With pre-charged R-454B quick-connect linesets, you skip the need for a vacuum pump or an EPA Section 608 license. Models like the 9K and 12K even offer simple 115V plug-in options