Quality construction, Economically priced. Boosts air flow in hard to heat or cool rooms. Easy installation in both metal and flex duct. Optional speed and Duct Airstat operating controls. Quiet, smooth operation.
Table is based on straight metal duct.
90 Degree elbows are equivalent to 10 feet of straight duct. Performance based on 70 degrees F. standard air. The number after EF-matches the round duct diameter. For complete dimension and performance specifications consult factory.