MRCOOL DIY 5th Gen Multi-Zone 3-Zone 55,000 BTU 23 SEER2 (12K + 12K + 18K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes Line Set for 12K Air Handler #1:50 Ft and long-term reliability

and long-term reliability

or system upgrade

Why Install a Condensate Overflow Switch

Airtight butterfly damper with handle for winter shut-off or volume control

MRCOOL DIY 5th Gen Multi-Zone 3-Zone 55,000 BTU 23 SEER2 (12K + 12K + 18K) Ductless Mini-Split Air Conditioner and Heat Pump with Ceiling Cassettes Line Set for 12K Air Handler #1:50 Ft and long-term reliabilityMRCOOL DIY Multi Zone 5th Gen 55K BTU Three Zone Ductless Mini Split with Ceiling Cassettes 12K + 12K + 18K A Heating and AC System You Can Install By Yourself! Heat or cool three rooms in style with the brand new 5th gen ceiling cassette air handlers on the MRCOOL DIY 5th Gen Multi Zone 55,000 BTU 23 SEER 3 Zone Ductless Heat Pump Split System 12K + 12K + 18K. This DIY Series multi zone product features easy installation that requires no special