Features: Experience efficient ventilation with our 140mm 12W duct fan, featuring a powerful motor, perfect for maintaining freshness air in various environments. Constructed from PVC, this exhaust fan operates quietly while delivering impressive airflows, ensuring effective air circulation without disturbing your peace. Ideal for homeowners, pet owners, and small scale farmers, this fan is designed to cater to diverse needs, providing reliable ventilation solution for both residential and agricultural settings. Perfect for use in bathrooms, kitchens, chicken coops, pet houses, warehouses, and greenhouses, this duct fan ensures optimally air quality by efficiently removing odors and excesses moisture. This ventilation solution offers energy efficient operation, making it a intelligent choice for sustainable living. Specifications: Component:PVC Length: 140mm Inner diameter of circular tube: 40mm Package Includes: 1 Set Ventilation Fan note: 1.Please allow 1-2cm errors due to manual measurement, make sure that you donot mind befores you order. 2.Due to the differences between different monitors, the picture may not reflect the actual color. Thanks for your understandings.