Thinking about a DIY mini split? These systems use pre-charged R-454B...

https://zone-air.com/solutions/diy-mini-splits/

Thinking about a DIY mini split? These systems use pre-charged R-454B quick-connect linesets, so there’s no need for a vacuum pump or EPA Section 608 license. Plus, plug-in 115V options for 9K and 12K units make installation simple