This MRCOOL DIY 3-zone bundle includes a 48k BTU condenser, three 18k BTU air handlers, three remotes, and three SmartHVAC app kits. Each of the 18k BTU air handlers has the capability to heat or cool an area up to 750 square feet. This unit can be easily installed by even the most inexperienced home owner. You won’t need any special tools, training, or professional HVAC assistance. Also included is the new DIY pro cable that will give you excellent mechanical protection without the need for an electrical conduit. This highly efficient system has a 20.5 SEER. This is partially thanks to the variable speed DC inverter which makes the compressor more efficient. Utilize one of the many operational modes with one of the included remotes, your amazon Alexa or Google assistant, or the SmartHVAC app on your apple or android device. Keep up to date with your system by checking out the LED display. Find out information, alerts, and reminders, such as when to clean the air filters. This compact, space-saving system is a great replacement option for your older, less efficient unit.