Installing a DIY mini split system just got easier. Use pre-charged R-454B...

https://wiki-cable.win/index.php/Is_a_3-Zone_27K_(9K%2B9K%2B9K)_Enough_for_Three_Bedrooms%3F

Installing a DIY mini split system just got easier. Use pre-charged R-454B quick-connect linesets—no vacuum pump or EPA Section 608 license needed. These units offer simple 115V plug-in options for 9K and 12K models