Round Bowtie Damper 91-8 Residential Registers & Grilles round collar only) * 830

round collar only) * 830 OR - factory installed opposed radial damper (sizes 6"-14") * 830 FR - U

3 or 4 way air patterns from face * One size fits 6" thru 16" (collar by others) * Soft White

Standard Features * Step-down design with four-way air diffusion * Countersunk mounting holes for flush appearance with color matching Phillips posi-drive screws * Step-down feature allows for uniform airflow distribution * Soft White Options * 100 - diffuser only (no damper) * 100 D - diffuser with steel multi-shutter damper * 100 O - diffuser with steel opposed blade damper * No Labor Collar - Square to round * Tamper proof screws * Standard Color

Standard Features * Lightweight Aluminum vent louver * This is a larger version of the 4901 series * Flush face * Spring clip mounting * Able to withstand wet and corrosive environments * 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

Standard Features * Double deflection aluminum wall or ceiling register * Heavy gauge aluminum frame * Individually adjustable extruded aluminum airfoil blades * Allows for spot or normal air diffusion * Hidden mounting mechanism * White Options: * Standard Color or Designer Color Finish available on this product

Round Bowtie Damper 91-8 Residential Registers & Grilles round collar only) * 830Standard Features Accessory to the 90 Series Field installable bowtie damper with round ring Available 6, 8, 10, 12 & 14" Mill finish SUBMITTAL 91 Series Submittal