Volume Damper Low-Leak OBD 3000-0BDLL-42X24 Residential Registers & Grilles Standard Features * Extruded aluminum

Standard Features * Extruded aluminum construction * 45 fixed blades parallel to longest dimension * Margin edges are 7/8" projection for baseboard installation * Countersunk mounting holes for flush appearance with color matching Phillips posi-drive screws * Soft White Options * 1100FF - flush frame * Fractional and odd dimension sizes * Standard Color

1" and 1 1/2"

Individually welded 14 guage diffusion bars

Negator stainless steel closure springs mounted on spring pin brackets

Volume Damper Low-Leak OBD 3000-0BDLL-42X24 Residential Registers & Grilles Standard Features * Extruded aluminumh3. Standard Features * Opposed blade operation for precise volume control * 16 gauge galvanized channel frame * Blades are vee stiffened 16 gauge galvanized for strength and stability * Blades pivot on non metallic celcon bushings * 1 2" square zinc plated steel pivot pins * 1 2" square zinc plated steel adjustable operating shaft extending up to 4" beyond the air control frame * Single blades on dampers with a height of 12" or less * Mill finish h3.