Parallel Blade Volume Damper 3000P-42X18 T-Bar * 2534 - Square or

* 2534 - Square or rectangular spring actuated (6) for horizontal or vertical mount

904 - Double Deflection Adjustable Aluminum Blade Grille For a 30" x 30" Duct Opening (front blades parallel to shortest dimension)

Standard Features * 2661 - Square or rectangular fire door for vertical mount only

Standard Features * Full size fixed blade T-Bar lay-in return air grille * Fixed Blade * Square collar * For 22"x22" square duct * Soft White Options * 900 T O - opposed blade damper * No Labor Collar - square to round (2x2 only) * 1x2 panel (10"x22" duct) or 2x4 panel (22"x46" duct) * Satin Anodized Finish available on this product

904 - Double Deflection Adjustable Aluminum Blade Grille For a 30" x 18" Duct Opening (front blades parallel to shortest dimension)

Parallel Blade Volume Damper 3000P-42X18 T-Bar * 2534 - Square orh3. 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