Round Aluminum Air Louver 4901-IS-4 past 12 months 12" and 14") * HVD

12" and 14") * HVD OR - factory installed opposed radial damper (sizes 6"-14") * HVD FR - U

smooth style * 360 air diffusion * Excellent for variable air volume applications * Hinged-down core for easy access * No Labor Collar * Seismic support hangers * Available sizes: 6"-10"

Dampers above 80 square inches free area will be provided with blade insulation

Designer Color or Plated Metal Finish available on this product

Perforated face grille

Round Aluminum Air Louver 4901-IS-4 past 12 months 12" and 14") * HVDStandard 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