Opposed Blade Volume Damper 3000-0BD-28X28 Step Down Ceiling Diffuser Square to round 2" collar

Square to round 2" collar with roll formed retention bead - available in square sizes only

inner dimension and outside dimension sizes available * Tamper proof screws * Standard Color

Options * Sleeve variations h3

Adjustable directional dampers with shut-off

055 T6) surface mount diffuser * Nylon bushings for easy adjustment and quiet setting of airfoil blades * Countersunk mounting holes for flush appearance with color matching Phillips posi-drive screws * Single deflection diffuser with adjustable airfoil blades * Airfoil blades are parallel to longest dimension * Allows 2-way air deflection on one plane * Soft White Options * 901 O - with recessed screwdriver operated opposed blade damper * 1331 and 1332 Series - stainless steel single deflection * Fractional

Opposed Blade Volume Damper 3000-0BD-28X28 Step Down Ceiling Diffuser Square to round 2" collarh3. 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.