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Ships within 48 hours · Estimated delivery Nov 15 - Nov 20
Locking screw to hold damper in place
Countersunk mounting holes for flush appearance
1 for each end)
All steel construction
Single deflection radius mount spiral pipe grille with adjustable blades
Parallel Blade Volume Damper 3000P-30X20 Smoke-Fire Damper Locking screw to hold damperh3. 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
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