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

https://www.pfdbookmark.win/thinking-about-installing-a-mini-split-yourself-these-diy-units-come-with

Thinking about a DIY mini split? These systems come with pre-charged R-454B quick-connect linesets, so you skip the vacuum pump and don’t need an EPA Section 608 license. Plus, the 9K and 12K units plug into any standard 115V outlet