Precharged R-410 Quick Connect® Line Set

Pre-charged linesets allow you to install this innovative ductless system without special tools, equipment, or training. Couplers are available for extended lengths. Check out our patent here.

Certified Efficiency

Going above and beyond for efficiency while maintaining optimum performance and reliability, the 12K, 18K and 24K models are Energy Star Certified.

Enhanced Control from Anywhere

Control your MRCOOL DIY® anywhere with your Apple or Android smart device and an internet connection.

Safety & Durability

The included DIYPro™ Cable eliminates the need for electrical conduit providing higher mechanical protection and durability.

Personalized Performance

Keep the remote close by, and MRCOOL DIY® will track the air temperature around you to ensure you receive maximum comfort.

Protecting Your Investment

When the MRCOOL DIY® detects low coolant an alarm will sound to alert you to the problem. This will prevent damage to the compressor while you maintain high air comfort.

Cooling Down to 5°F

This feature makes the MRCOOL DIY® the ideal system for server rooms, greenhouses, and any other application that requires cooling all year.

Never Lift a Finger

Power outage? Don’t worry, the MRCOOL DIY® auto restart will have the unit running again in no time at all.

24-Hour Comfort

We made Sleep Mode easy to program to save money, and let you sleep a little easier.

Remembers So You Don’t Have To

Horizontal louver will automatically move to the same position as you set last time the unit was turned on.

Corrosion Resistant

Live on the coast? Don’t worry, our condenser is built to resist long term corrosion.

Google Assistant & Amazon Alexa

The new MRCOOL® Smart HVAC Controller® Module and App fully support Google Assistant & Amazon Alexa out of the box.

Limited Lifetime* & 7 Yr Replacement* on Compressor + 5 Yr Parts

4th Gen DIY®s have an optional LIMITED LIFETIME compressor warranty*, a 7-year compressor replacement* warranty, and a standard 5-year parts warranty for the original registered owner. See rules and restrictions here.