The Maytag M120 MSA4BF air conditioner offers energy-efficient, two-stage cooling comfort. When combined with Maytag coils or air handlers, this air conditioner delivers up to 16 SEER cooling. Features and Benefits: The Latest Environmentally Friendly Refrigerant: Non-ozone-depleting SmartCool 410 (R-410A) refrigerant. Two Stages of Comfort: Two-stage cooling provides more consistent temperatures throughout the home and increased dehumidification. Durable: Galvanized steel with a polyester urethane finish. The 950-hour salt spray finish is 1.5 mil thick and resists corrosion 50% better than standard finishes. Innovative Micro-Channel Coil: All-aluminum Micro-Channel coil resists corrosion (in select tonnages). ENERGY STAR Rated: Exceeds ENERGY STAR efficiency requirements. Designed and Assembled in the U.S.A.: Factory checked 144 times before being shipped. Copeland Scroll UltraTech Compressor: Proven and simple compressor design for years of reliability; two stages of cooling capacity. Composite Base Pan: Absorbs sound and resists corrosion. Removable Top Grille Assembly: Allows ease of service from the top without disconnecting fan motor leads. High Pressure Switch: Protects against abnormally high system pressures. Auto-reset feature prevents nuisance service visits. Low Pressure Switch: Loss of charge protection ensures long life. Auto-reset feature prevents nuisance service visits. Liquid Line Filter Drier: Included with unit; field installed. One-Piece Top/Orifice: Designed for maximum airflow and quiet operation. Easy Compressor and Controls Access: Designed to make servicing easier for the contractor. Warranty: Exceptional 12-year all-parts warranty. Peace of mind with 1-year Dependability Promise to replace the entire unit if the compressor fails. Product registration required.