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Ships within 48 hours · Estimated delivery Sep 19 - Sep 24
1/4” crossbars
904 - Double Deflection Adjustable Aluminum Blade Grille For a 24" x 6" Duct Opening (front blades parallel to shortest dimension)
69% free area * 1308: 7/8" lattice opening
2x4 * Soft White
Recommended Minimum Sleeve Thickness for Fire Dampers
Volume Damper Low-Leak OBD 3000-0BDLL-54X22 Step Down Ceiling Diffuser 1/4” crossbarsh3. 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.
US$ 40.00
US$ 10.00
US$ 199.99
US$ 10.00
US$ 69.99
