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

https://www.sierrabookmarking.win/thinking-about-installing-a-mini-split-yourself-diy-systems-with-pre-charged

Thinking about a DIY mini split install? These systems use pre-charged R-454B quick-connect linesets, so you skip the vacuum pump and the need for an EPA Section 608 license. Plug into a regular 115V outlet with 9K and 12K units