The MRCOOL MLG450-G LineGuard Line Set Cover Kit is an HVAC installation accessory designed to protect and conceal refrigerant line sets, electrical wiring, and drain lines in compatible ductless mini-split and heat pump systems. It works by enclosing exposed connections within a durable protective cover, helping shield them from weather, UV exposure, and physical damage while providi... https://www.partshnc.com/mrcool-lineguard-line-set-cover-kit-mlg450-g