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Royalaire Aluminum Floor Diffusers (531 Series)
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More About Royalaire Aluminum Floor Diffusers (531 Series)
The 531 Royalaire Aluminum Floor Diffusers by Hart & Cooley provide corrosion-resistant, high strength with extruded aluminum construction, heavy cross-bracing at strategic intervals, dual multi-shutter valves for adjustable air pattern, nylon slide valve operators, and a satin-anodized finish.
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