Evolution™ Series Central Air Conditioner (Best)

Up to 20 SEER Sound as low as 70 dB (quiet as a vacuum) Superior humidity control Improved indoor air quality 2-stage operation for maximum comfort Evolution™ Control for ultimate performance AeroQuiet™ System II DuraGuard™ Plus system Up to 23 diagnostic checkpoints Environmentally sound Puron™ Refrigerant 10-year compressor limited warranty; 5-year parts limited warranty

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Preferred™ Line Central Air Conditioner (Better)

Up to 14 SEER Sound as low as 74 dB (quiet as a dishwasher) DuraFlow™ louver coil guard Environmentally sound Puron™ Refrigerant 10-year limited compressor warranty 5-year limited parts warranty

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Preferred™ Line Central Air Conditioner (Good)

Up to 14 SEER Sound as low as 74 dB (quiet as a dishwasher) DuraFlow™ louver coil guard Environmentally sound Puron™ Refrigerant 10-year limited compressor warranty 5-year limited parts warranty

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