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Heavy gauge cold roll steel
Hinged removable extruded aluminum face frame with signature line marks
Air Patterns
Round ceiling radiation butterfly damper
Spiral Pipe Diffuser with Transition Box SD34-30X12G past 12 months Heavy gauge cold roll steelSD34 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
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