The SEAFLO 4'' TURBO ventilator-duct is a professional device designed for high performance (320CFM). The new ventilators from SEAFLO are manufactured with exclusive technology that seals the motor of the duct and protects the blades from oxidation over time. The SEAFLO 4'' TURBO ventilator is easy to install, comes with a base for better support, and offers high performance with low power consumption.