The MRCOOL NV50-3834 Universal Series 50 FT 3/8" x 3/4" Pre-Charged Quick Connect Line Set is a pre-charged refrigerant line assembly designed for compatible MRCOOL ductless and mini-split HVAC systems. It connects the indoor air handler to the outdoor condenser, allowing refrigerant to circulate between the units for efficient heating and cooling. The 50-foot line set features 3/8-in... https://www.partshnc.com/mrcool-universal-series-pre-charged-quick-connect-line-set-nv50-3834