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

https://www.easybookmarkings.win/thinking-about-a-diy-mini-split-system-you-can-save-time-and-hassle-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 avoid needing an EPA Section 608 license. Plus, 9K and 12K models plug into standard 115V outlets