Best Exterior Blowers Can Be Roof- Or Wall-Mounted, Depending On Your Appearance Preferences, Or To Best Suite The Ducting Requirements Of The Application. Blower Housings Are Crafted From Durable, Weather Resistant, Brushed Aluminum For Worry-Free Installation. Housings Can Be Painted To Match Your Decor. (Ul)(Li)1650 Max Cfm(/Li)(Li)Duct Size: 10" Round (/Li)(Li)Thermal Overload Protected (/Li)(Li)Use With Models Kex, Iex, K210A, K260A, Pik, & Ddex For Use With Best Hoods And Downdrafts, Including The D49M Cattura Downdraft, Designed To Use External Blowers. (/Li)(/Ul) (Ul)(Li)External Blowers Are Located Remotely Outside Of The Range Hood And Come In Two Versions, Exterior And In-Line: (Ul)(Li) Exterior Version: Located On The Outside Roof Or Wall Of The House(/Li)(/Ul)(/Li)(/Ul)