50-Pint Dehumidifier with Built-in Pump, White50 Pints with Pump Function Dehumidified Area: 3500 4500 Square Feet Efficiently removes up to 50 pints of moisture per day from the air, perfect for large rooms up to 4,500 square feet. Choose from manual emptying of the 2 Gal tank, continuous gravity drainage with the drain hoses, or use the built in pump to automatically expel water to a sink or out a window. Comes with a reusable filter for easy maintenance and auto defrost function for hassle