Fantech FG 4XL Inline 4″ Centrifugal Duct Fan, Metal Housing, 170 CFM, 120V

The housing is manufactured from a two-piece stamped galvanized construction. The two halves are joined using Fantechs unique folded seam closure, which gives the fan the first-in-class, air-tight seal. Duct-connected outdoor and wet room applications of the fan are possible due to the air-tight casing. FG fans are equipped with backward-curved impeller blades and external rotor motors. With the motor in the airstream, the fan provides the constant dissipation of heat buildup thus giving the fan first in a class in longevity and reliability