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round collar only) * 830 OR - factory installed opposed radial damper (sizes 6"-14") * 830 FR - U
For evaporative cooling or high-velocity exhaust applications
MRI Compatible
904 - Double Deflection Adjustable Aluminum Blade Grille For a 18" x 6" Duct Opening (front blades parallel to shortest dimension)
Standard Features * Single plaque ceiling diffuser * 360 air diffusion * Hinged-down core for easy duct access * No Labor Collar * Seismic support hangers * Available sizes: 6"-10"
Radius Spiral Pipe Diffuser RS52-16X6 Spiral Pipe Diameter:16" round collar only) * 830Standard Features Single deflection radius mount spiral pipe grille with adjustable blades Blades are parallel to the shortest dimension Allows for 2 way airflow Nylon bushings on adj. blades prevent metal on metal rattle One piece curved frame with gasket fits flush to spiral pipe Product sizes available to fit spiral pipe diameter 8 48. Spiral pipe diameter must be 4 larger than the width of the grille. Galvanized Finish View or print our product
