Installing a mini split line set can seem daunting, although with the right tools and a little know-how, it's an achievable DIY project. Before you begin, always consult your unit's production company's instructions https://www.plumbingsupplyandmore.com/duraguard-mini-split-copper-line-set-3-8-x-7-8-x-1-2-x-35-2002300.html