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Ships within 48 hours · Estimated delivery Sep 1 - Sep 6
Available in 4" through 29" round
parallel to longest dimension
Countersunk mounting holes for flush appearance with stainless sheet metal screws
Options * Sleeve variations * Fractional and odd sizes available h3
904 - Double Deflection Adjustable Aluminum Blade Grille For a 34" x 18" Duct Opening (front blades parallel to shortest dimension)
Volume Damper Low-Leak OBD 3000-0BDLL-40X34 Residential Registers & Grilles Available in 4" through 29"h3. 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.
