Steel double deflection supply grille, 3/4" blade spacing, front blades parallel to short dimension FEATURES AND BENEFITS Available with front louvers vertical or horizontal Optional opposed blade damper has screwdriver adjustment accessible through face of register Front and rear louvers are individually adjustable Insect and debris screens are not available when dampers are fitted Material is steel #8 x 11/4” lg. Phillip’s flat head sheet metal screws (painted) All dimensions are ± 1/16”

Steel Single Deflection Return Grille with ¾” blade spacing, 35° fixed deflection, Blades parallel to the long dimension

The CRD-1 is a UL555C classified damper designed to limit the radiant heat transfer through an opening in the ceiling membrane of a fire-resistance rated floor/ceiling assembly of three hours or less