Model 530 single deflection louvered return air grilles have fixed blades on 3/4” centers, 45 degree blades parallel to the long dimension, B12 white baked enamel finish, and face screw fastening on all sizes except frame with no screw holes for lay-in application on the 22" x 6", 22" x 10", 22" x 22", 46" X 22". Optional damper (loose) model VCS3 comes complete with screwdriver operated blade adjustment with patented detent mechanism to assure damper position is maintained.

Model 530 single deflection louvered return air grilles have fixed blades on 3/4” centers, 45 degree blades parallel to the long dimension, B12 white baked enamel finish, and face screw fastening on all sizes except frame with no screw holes for lay-in application on the 22" x 6", 22" x 10", 22" x 22", 46" X 22". Optional damper (loose) model VCS3 comes complete with screwdriver operated blade adjustment with patented detent mechanism to assure damper position is maintained.