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

https://www.apu-bookmarks.win/thinking-about-installing-a-mini-split-yourself-these-diy-friendly-systems

Thinking of installing a mini split yourself? With pre-charged R-454B quick-connect linesets, you skip the vacuum pump and the need for an EPA Section 608 license. Plus, 9K and 12K units come with easy 115V plug-in options. Most installs take 4 to 8 hours