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

https://uniform-wiki.win/index.php/Do_I_Need_a_Permit_to_Install_a_Mini_Split_Myself%3F

Thinking of installing a mini split yourself? With pre-charged R-454B quick-connect linesets, you can skip the vacuum pump and the EPA Section 608 license hassle. Many 9K and 12K units plug into a standard 115V outlet for easy setup