Features: -Made of high-quality ABS, it is high in strength, not easy to break, corrosion-resistant and durable. -The waterproof process can ensure a good sealing effect, making it safer and more reliable to use. -It has a higher air flow rate than ordinary fans, ensuring rapid air circulation and improving air quality. -Easy to install, can be installed vertically or horizontally. -Suitable for yachts, engine rooms, passages, buildings, RVs, etc. Specification: Colour: white Material: plastic Size: 21*13.5*11.5cm Interface diameter: 8cm Voltage: DC 12V Airflow: 130cfm, 3800lpm Consumption: 2.5amp Maximum air volume: 220m3/h .