Volume Damper Low-Leak OBD 3000-0BDLL-28X20 Step Down Ceiling Diffuser Blades are parallel to the

Blades are parallel to the shortest dimension

*Pricing is based on standard 14 GA steel construction

Standard Features * 1" rim size (2" larger than nominal duct size) * 14 gauge steel * 1305: 1/2" lattice opening

115T Series Engineering/Performance Data

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

Volume Damper Low-Leak OBD 3000-0BDLL-28X20 Step Down Ceiling Diffuser Blades are parallel to theh3. 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.