The CLOUDLINE A8 Inline Fan is a powerful ventilation system known for its speed and quietness. Built with innovation in mind, the package includes a speed controller that is compatible with all the CLOUDLINE Series of smart controllers. This fan works in various spaces such as grow tents, closets and rooms providing quiet ventilation even in high static pressure applications. Thanks to the ease of mounting and dismounting the fan, cleaning and maintenance are not a struggle. The dual hydrodynamic wind wind circles and a stator blade deliver airflow in restrictive spaces without requiring extra power or creating more noise. With a duct size of 8 inches, this kit is highly performant and has a life expectancy of up to 67,000 hours. The Cloudline A8 inline fan is suited for up to 120x240x200cm (4x8x6.5 ft.) areas. Need less power? Consider the Cloudline A6, which suits up to 120x120x200cm (4x4x6.5 ft.) areas. Need even less power? Consider the Cloudline A4, ideal for 100x100x200cm (3.3x3.3x6.5 ft.) areas.