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T-Bar hinged 2 Cone Step Down Diffuser with Round Collar
3/4” Wide x 3/4” High square holes
Damper manufactured from corrosion tested galvanized mild steel (G-90)
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
Opposed Blade Volume Damper 3000-0BD-68X34 Residential Registers & Grilles T-Bar hinged 2 Cone Steph3. 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.
