The MRCOOL 4th Generation DIY 18K BTU Ductless Wall Mounted Air Handler is one of the most capable on the market. When part of a MRCOOL DIY system,...

The MRCOOL 4th Generation DIY 12K BTU Ductless Wall Mounted Air Handler is an essential component of a MRCOOL DIY system. When paired with a MRCOOL...

As part of a MRCOOL DIY system, the MRCOOL DIY 9K BTU Ductless Wall Mounted Air Handler is one of the most efficient air handlers available. Not on...