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

https://landenuzqb895.theglensecret.com/what-is-a-pre-charged-quick-connect-mini-split-in-plain-english

Thinking about a DIY mini split? These systems come with pre-charged R-454B quick-connect linesets, meaning no vacuum pump or EPA Section 608 license is needed. The 9K and 12K models even offer easy 115V plug-in options