Efficient Cooling- Beat the heat and humidity with our dual ball fan kit that expels hot air and lets cool air in, keeping your space fresh and comfortable. Perfect for small space ventilation, such as greenhouses, chicken coops, sheds, pet houses, rv refrigerator and windows. 12V FanProtect Your Equipment from the Elements with Waterproof IP67 Rating - Rain, Splashes, and Dust Won't Stand a Chance. Experience Exceptional Cooling Efficiency with Maximum Airflow and Heat Dissipation - Keep Your Equipment Running Smoothly. Dual BallBuilt to Last: Crafted with durable materials, our fans are corrosion-resistant and built to withstand wear, providing reliable performance for years to come. Waterproof MotorFans are treated with a waterproof layer to withstand outdoor use. The metal protective casing ensures the normal operation of the fan blades, making it safe and durable. Parameters120 x 120 x 25 mm ( 4.72 x 4.72 x 1 in. )