Upgrade your home comfort with the 5th generation MRCOOL DIY 12K BTU, 23.5 SEER ductless Heat Pump system. Perfect for spaces up to 550 sq. ft., this high-performance system provides year-round heating and cooling with exceptional energy efficiency. With an impressive 23.5 SEER rating, it’s Energy Star certified, helping you save on energy costs while maintaining a comfortable home environment. The MRCOOL DIY system comes complete with a 12K condenser, 12K air handler, and a 25 ft. pre-charged line set with R-454A refrigerant, making installation a breeze. The easy-to-use quick-connect line set requires no special tools or professional help—simply follow the included instructions for a hassle-free setup. Enjoy ultimate comfort with versatile modes including heat, cool, dry (dehumidification), and sleep. The "Follow Me" feature uses the remote control's temperature sensor to automatically adjust the system’s settings for optimal comfort. Plus, control your system from anywhere with the Smart HVAC app for added convenience. Get reliable, energy-efficient climate control with the MRCOOL DIY 5th Gen system—perfect for those who want both comfort and savings.