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Hinged removable extruded aluminum face frame with signature line marks
Note: Listed Size Is Nominal Duct Opening / Nominal Filter Size
Heavy Duty Construction (1 1/2" frame depth utilized)
055 T6 extruded aluminum * Square collar * For 22"x22" square duct * Soft White Options * 915 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
inner dimension and outside dimension available * Available in continuous lengths with butt joints * Tamper proof screws * Standard Color
Parallel Volume Damper Low Leak 3000PLL-68X26 Smoke-Fire Damper Hinged removable extruded aluminum faceh3. 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
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