Thinking about installing a mini split yourself? These systems come with a...
https://sticky-wiki.win/index.php/R454B_Refrigerant_in_DIY_Mini_Splits:_Is_It_Different_from_Older_Units%3F
Thinking about installing a mini split yourself? These systems come with a pre-charged quick-connect lineset that makes setup simple—no vacuum pump needed and no EPA Section 608 license required