Thinking about installing a mini split yourself? DIY systems with pre-charged...

https://fast-wiki.win/index.php/Why_Do_Traditional_Mini_Splits_Need_a_Vacuum_Pulled_to_500_Microns%3F

Thinking about installing a mini split yourself? DIY systems with pre-charged R-454B quick-connect linesets make it simple—no vacuum pump or EPA Section 608 license needed. You can plug in 9K and 12K units directly to 115V outlets