In-Line Duct Blower, Centrifugal, Less Drive Package, Wheel Dia. (In.) 17, Max. Inlet Temp. (Deg. F) 160, Bearing Type Regreasable Pillow Block, Height (In.) 26, Width (In.) 26, Max. Depth (In.) 26, Inlet Dia. (In.) 11-7/8, Outlet Dia. (In.) 11-7/8, Outlet Height (In.) 22-7/8, Outlet Width (In.) 22-7/8, Inlet Width (In.) 22-7/8, Inlet Height (In.) 22-7/8, Max. Motor Height (In.) 13-3/8, Mounting Position Vertical/ Horizontal, Housing Material Galvanized Steel Square Centrifugal In-Line Duct BlowersDesigned for indoor clean-air applications including intake, exhaust, return, or makeup air systems in industrial or commercial buildings. Collars simplify duct connections. Panels on each side provide quick access to internal fan components. Drive package components packed separately.UL 705. UL and C-UL Listed.Aluminum backward-inclined, nonoverloading centrifugal wheel design Mount horizontally or verticallyBelt-DriveBearing cover and motor cover provide longer service life Max. inlet air temp.: 160 F Max. ambient: 104 F Pillow block bearings: Sealed up to 13-1/2" wheel dia.; regreasable for 14" wheel dia. and larger