Quick Connect lines (1/4 X 1/2), 3 Remotes, and 3 Smart HVAC Wi Fi kits. MRCOOL offers an easy DIY ductless mini split installation with their patented DIY pre charged quick connect line sets that makes connecting refrigerant piping as simple as turning a few wrenches. The innovative Gold Fin anti corrosion technology makes this a great choice for those in coastal regions where corrosion is more likely. With a low profile installation and quiet operation, the mini split ceiling cassette is the most versatile ceiling mount air handler. Whether it be new construction, retrofit, or anything between they are designed to be recessed between all types of joist on 16 in center. A unique feature is the Elevating Filter function which allows the filter panel to raise or lower automatically with the touch of a button, so maintenance is easy. It can be operated with the included remote, Alexa, or Google Assistant.