The MRCOOL DIY50-3858C is a 50-foot pre-charged copper connection line set designed for MRCOOL DIY 4th Generation 24,000 and 36,000 BTU mini-split systems. It connects the indoor air handler to the outdoor condenser, carrying R-410A refrigerant through a 3/8-inch liquid line and 5/8-inch suction line to support efficient heating and cooling. Equipped with Quick Connect fittings, it si... https://www.partshnc.com/mrcoolr-diy-line-set-diy50-3858c