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

https://telegra.ph/Do-I-Have-to-Register-My-Mini-Split-Warranty-with-Zone-Air-07-28

Thinking about a DIY mini split? These systems come with pre-charged R-454B quick-connect linesets, so there’s no need for a vacuum pump or an EPA Section 608 license