MRCOOL MC25-1412 Mini Split Flared Line Set is a 25-foot refrigerant line set designed for compatible 12K and 18K BTU ductless mini-split HVAC systems. Featuring 1/4-inch and 1/2-inch copper lines with flared connections, it links the indoor air handler and outdoor condenser, allowing refrigerant to circulate efficiently during heating and cooling operation. It is ideal for new instal... https://www.partshnc.com/mrcool-25ft-1-4-x-1-2-flared-line-set-mc25-1412