EF Series Duct Fans
The EF Series include a heavy gauge housing and a stronger motor than the competition. The EF Series has better performance, higher velocity (works against higher pressure drops). Model EF-6 (plastic fan blade) and EF-8 (metal fan blade) have C-Frame motors. Models EF-10, EF-12 and EF-14 have 3.3 frame motors and metal fan blades.
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