Stay cool and comfortable with the Frigidaire 12,000 BTU Built-In Room Air Conditioner, designed for spaces up to 550 sq ft. With an EER of 9.8, this unit provides efficient cooling while blending seamlessly into your home. Its built-in design is perfect for those looking for a permanent air conditioning solution without sacrificing aesthetics. Ideal for larger rooms, this air conditioner ensures you enjoy a refreshing environment all summer long.