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945 Series Engineering/Performance Data
904 - Double Deflection Adjustable Aluminum Blade Grille For a 36" x 30" Duct Opening (front blades parallel to shortest dimension)
Reinforced welded core and extra supports for heavy duty application
Standard Features * Fixed blade return air T-Bar lay-in filter grille * Square collar for 20 1/2" x 20 1/2" duct * Hinged removable face * 20" x 20" x 1" filter (not included) * Seismic support holes * Soft White Options * 920 TFG - steel outer frame * 920 2 TFG - 2" filter spacing (filter not included) * No Labor Collar - square to round (2x2 only) * 1x2 (20x8 filter) or 2x4 (20x44 filter) * Satin Anodized Finish available on this product
Standard Features * Steel construction * Generous free area for quiet operation * Lever operated single-blade damper * Removable face and damper * Tension wings to stabilize damper * Available in 15"
Parallel Volume Damper Low Leak 3000PLL-70X44 Commercial 945 Series Engineering/Performance Datah3. 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
