MRCOOL 36K BTU 18 SEER Ductless Heat Pump Single Zone Mini Split Condenser. It is a game-changer for home climate control. Designed for straightforward installation, it requires no specialized tools or professional help, making it an excellent choice for spaces ranging from 1000 sq. ft. The system includes a pre-charged 25-foot QuickConnect line set filled with R-454B refrigerant, streamlining installation by eliminating the need for vacuuming.