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

https://cleaneverycorner.com/is-a-21000-btu-12k9k-dual-zone-mini-split-enough-for-two-rooms/

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