The Broan HLB3 External In-Line Blower is specifically designed to provide a powerful (280 CFM) but quiet kitchen ventilation solution that can easily meet the needs of every unique application. The perfect alternative to internal or exterior blowers, it works with all Broan range hoods designed for use with external blowers (Broan Elite and NuTone Premier). It is factory shipped in horizontal discharge position but may be converted to vertical discharge.