• R-410A Refrigerant: Earth-friendly, non-ozone-depleting refrigerant.
• Micro-Channel Coil: All-aluminum Micro-Channel coil resists corrosion (in select tonnages).
• Built to Last: 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.
• Quiet: Swept-wing fan blade reduces unwanted noise.
• Efficiency Boost: This unit gets up to a 1 SEER boost when paired with a variable-speed air handler or one of our iSEER furnaces.
• Quality Made: Factory checked 144 times before being shipped.

The Westinghouse FS4BE series of air conditioners offers exceptional cooling performance. When combined with our engineered coils or air handlers, this A/C unit delivers high-efficiency 14 SEER cooling, or 15 SEER if a variable-speed indoor is used.