Thinking about a DIY mini split installation? With pre-charged R-454B...

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

Thinking about a DIY mini split installation? With pre-charged R-454B quick-connect linesets, you can skip the vacuum pump and avoid needing an EPA Section 608 license. Plus, 9K and 12K models offer simple 115V plug-in options