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

https://www.4shared.com/office/wB0H-3Xrjq/pdf-74784-38062.html

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