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17.5 SEER2 • R-454B Refrigerant • Extreme Cold Climate Performance The MRCOOL® Universal® Series 48K BTU 4 Ton Central Ducted Heat Pump System is a high-capacity, inverter-driven HVAC solution designed to deliver reliable, energy-efficient comfort in larger homes and demanding residential applications. Engineered to perform in extreme conditions, this system operates across a wide temperature rang…