FrosthubUSA is now Cool Mini Splits. Same company, old name.
MRCOOL DIY Single Zone
Shop all single zone →1How big is the room? One system cools and heats one room
2Or pick a line Same install, more features as you go up
Everything ships in one box
Not sure? Call +1 (844) 999-9725
MRCOOL DIY 5th Gen Multi-Zone
Shop all 385 systems →1How many rooms? Each room gets its own indoor unit and temperature
2Or pick the outdoor unit Bigger unit, more rooms and more space
How a multi-zone system connects
Three MRCOOL DIY lines, same easy install
Full comparison chart →
DIY Selectfrom$1,249Efficiency17.5 SEER2Compressor2 yrLine set11.5 ft9K12K18K24K36K
DIY EasyProfrom$1,487Efficiency20.2 SEER2Compressor5 yr +Line set11.5 ft9K12K18K24K36K
DIY 5th Genfrom$2,329Efficiency23.6 SEER2Compressor7 yr +Line set25 ft9K12K18K24K36KInstall accessories
Which line set fits?
Each indoor air handler needs its own line set, sized by BTU.
| Indoor unit | 16 ft | 25 ft | 35 ft | 50 ft |
|---|---|---|---|---|
| 6K, 9K, 12K1/4 × 3/8 | $227 | $264 | $502 | $587 |
| 18K1/4 × 1/2 | $239 | $272 | $510 | $599 |
| 24K, 36K3/8 × 5/8 | $271 | $457 | $565 | $662 |
How can we help?
FAQ →Before you buy
Manuals and documents
Orders and policies
Military & Veteran Discount Program
If you're a current or former member of the US Military, National Guard, or Reserve, you qualify. Your unique code works any time, year-round.
Cassettefrom $1,312