3 Zone MRCOOL DIY® 5th Generation Multi-Zone Ductless Mini Split Air Conditioner and Heat Pump Systems

The MRCOOL DIY 5th Gen Multi-Zone is a ductless heat pump system that allows you to heat and cool up to six separate rooms with a single outdoor unit, using eco-friendly R-454B refrigerant and a patented Quick Connect line set that eliminates the need for professional installation.

Build Your Own

Create a custom system by pairing the right indoor air handler sizes and types with our MRCOOL® DIY Multi-Zone Outdoor Units to fit the specific needs of your home or business. - Or, choose from one of our pre-made kits below!

Step 1: Choose your outdoor unit — select the capacity and number of zones you need.
Step 2: Pick your indoor units — choose the capacity and style for each zone.
Step 3: Select the appropriate lineset length for each indoor unit.
Step 4: We’ll ship your fully customized multi-zone mini-split air conditioning system right to your door.

Click here for the Brochure and System Matchup Guide