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904 - Double Deflection Adjustable Aluminum Blade Grille For a 20" x 10" Duct Opening (front blades parallel to shortest dimension)
PERFORMANCE DATA
Extruded aluminum frame with signature line marks
Note: Listed Size Is Nominal Duct Opening / Nominal Filter Size
Spiral Pipe Diffuser with Transition Box SD34-24X8G T-Bar 904 - Double Deflection AdjustableSD34 Transition Box Spiral Pipe Grille (DOUBle Deflection) Standard Features Double deflection transition box mount spiral pipe grille Blades are parallel to the shortest dimension Allows for 4 way airflow adjustment Nylon bushings on adj. blades prevent metal on metal rattle Curved saddle with gasket provides airtight fit to spiral pipe Product sizes available to fit spiral pipe diameters 8 48." Spiral pipe diameter must be 4 larger than Height of
