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951 Series Engineering/Performance Data
Use for applications with round ductwork to create a clean and easy to install finish for your round registers or diffusers
Center margins are mounted on the backside of the grille for a streamlined continuous look
Heavy Duty Construction (1 1/2" frame depth utilized)
850 Series Engineering/Performance Data
Opposed Blade Volume Damper 3000-0BD-28X12 Commercial 951 Series Engineering/Performance Datah3. 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.
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