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Mill finish
Airfoil blades individually adjustable on 3/4" centers
Standard Features * 1/2" x 1/2" x 1/2" aluminum lattice return air grille * Surface mount grille with
RS34 Series Engineering/Performance Data
375 Series Submittal
Opposed Blade Volume Damper 3000-0BD-70X18 Smoke-Fire Damper Mill finishh3. 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.
