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Ships within 48 hours · Estimated delivery Sep 24 - Sep 29
w/ Screwdriver Operated Opposed Blade Damper
Diffuser available in sizes 6×6 through 20×20
904 - Double Deflection Adjustable Aluminum Blade Grille For a 30" x 18" Duct Opening (front blades parallel to shortest dimension)
53% free area * 1306: 3/4" lattice opening
Performance Data With Opposed Blade Damper
Parallel Blade Volume Damper 3000P-54X46 Accessories w/ Screwdriver Operated Opposed Bladeh3. Standard Features * 16 gauge galvanized channel frame * Parallel blades are cee 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. Options * 3000 PLL Low Leak Air Control
