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

https://nova-wiki.win/index.php/What_is_a_Pre-Charged_Quick_Connect_Mini_Split,_in_Plain_English%3F

Thinking about installing a mini split yourself? With pre-charged R-454B quick-connect linesets, there’s no need for a vacuum pump or an EPA Section 608 license. Many 9K and 12K models even come as easy 115V plug-ins