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Ships within 48 hours · Estimated delivery Aug 13 - Aug 18
Spiral pipe diameter must be 4” larger than the width of the grille
3 or 4 way patterns * Spring push release for easy access to adjust pattern controllers * Round No Labor Collar sizes: 6-10"
Low profile design for tight mechanical areas
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Standard Features * For large volume air delivery * For evaporative coolers or central blower systems * Adjustable directional dampers with shut-off * Countersunk mounting holes for flush appearance with color matching Phillips posi-drive screws * Soft White
Round Aluminum Air Louver 4901-IS-8 Commercial Spiral pipe diameter must beStandard Features * Lightweight Aluminum vent louver * Able to withstand wet and corrosive environments * Spring clip mounting * Easily installed using only a high grade silicon caulk * Satin Anodized finish Options * IS Insect screen * Standard Color or Designer Color Finish available on this product
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