NEW! Dayton Shutter Mount Exhaust Fan, 20", 1 Speed, 4700 cfm, 115V!!

Shutter Mount Exhaust Fan, Blade Dia. SP 3070, CFM @ 0.250-In. SP 2390, Sones @ 0.000-In. Ambient Temp. CFM @ 0.000-In. CFM @ 0.125-In. CFM @ 0.250-In. Item : Shutter Mount Exhaust Fan.

eBay