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Standard Features 1” rim size (2” larger than nominal duct size / order size) 14 gauge steel construction Countersunk mounting holes for a flush appearance 1-27/32” Wide x 11/32” High slots on staggered centers
Standard Features * Gang-operated opposed blade radial volume control damper for use with RD Series Round Diffusers * Available in 2" increments from 6"-24"
Center margins are mounted on the backside of the grille for a streamlined continuous look
2701 Series Submittal
Parallel Volume Damper Low Leak 3000PLL-72X32 Accessories Standard Features 1” rim sizeh3. 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
