MRCOOL 1/4" x 1/2" Line Set Kit for 12,000 & 18,000 BTU Indoor Air Handlers. Comes in 16-foot and 25-foot lengths. Manufactured from refrigeration-grade copper, offering excellent heat transfer, corrosion resistance, and durability for both residential and light commercial applications. Factory-flared ends ensure secure, leak-resistant connections. Includes a 1/4 inch liquid line, 1/2 inch suction line, and control wire. Note: Only compatible with the 12,000 or 18,000 BTU air handler. Other BTU air handlers will require different line sets. Warning: This is a non-DIY line set. A licensed HVAC technician is required for installation and refrigerant charging. If you're looking for a pre-charged, DIY-friendly option, MRCOOL also offers quick-connect pre-charged linesets for their DIY series
