MR Cool DIY 5th Gen. Mini-Split Unit w/25Ft Lineset, 18,000BTU, 750Sq Ft, 208/230V

MR Cool DIY 5th Gen. Mini-Split Unit w/25Ft Lineset, 18,000BTU, 750Sq Ft, 208/230V

Upgrade your home's comfort and efficiency with the MRCOOL® DIY® 5th Generation 18,000 BTU Mini Split System – a powerful, ENERGY STAR® certified solution designed for true do-it-yourself installation. Ideal for larger areas between 500 and 750 square feet, this single-zone ductless system delivers efficient, whisper-quiet heating and cooling without requiring professional tools or HVAC licensing.

Equipped with a 25-foot pre-charged Quick Connect® line set, the system uses R-454B refrigerant, which offers a reduced global warming potential (GWP) compared to older refrigerants. Its advanced inverter technology ensures precise temperature control, lower energy consumption, and extended component life by adjusting performance in real-time based on your environment.

Stay connected and in control with integrated Wi-Fi capabilities, allowing full system management from your smartphone using the MRCOOL SmartHVAC app, or through hands-free control with Amazon Alexa or Google Assistant. Whether you're upgrading a living room, open-concept space, or workshop, this system is built to deliver maximum comfort with minimal installation effort.