The 4th Generation MRCOOL DIY 21K BTU 22 SEER 2-Zone Ductless Heat Pump Split System 9k plus 12k installation is simple and can be completed by the novice homeowner. This is most convenient thanks to the Quick Connect line set and the DIYPRO cable. The line set comes pre-charged with R410-A refrigerant， which is a more eco-friendly alternative. The DIYPRO cable provides mechanical protection from yard tools， animals or weather-all without an electrical conduit.
Gold Fin condenser: corrosion resistant - live on the coast， don't worry， our condenser is built to resist long term corrosion
Standard 7-year compressor/5-year parts warranty， register for limited lifetime compressor warranty
Energy efficient DC inverter
R-410A environmentally friendly refrigerant
100% sealed system
Gold fin condenser
Eco safe R-410A refrigerant
Smartphone app controls
Lifetime technical support
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