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

https://www.bookmarking-planet.win/thinking-about-installing-your-own-mini-split-our-diy-systems-come-with

Thinking about installing a mini split system yourself? With pre-charged R-454B quick-connect linesets, you can skip the vacuum pump and the EPA Section 608 license hassle. The 9,000 and 12,000 BTU units plug into a standard 115V outlet