Looking to install your own mini split? DIY systems with pre-charged R-454B...

https://cleaneverycorner.com/is-a-21000-btu-12k9k-dual-zone-mini-split-enough-for-two-rooms/

Looking to install your own mini split? DIY systems with pre-charged R-454B quick-connect linesets make it simple—no vacuum pump or EPA Section 608 license needed