Alpha ACL. Acoustics Louver
FRAME : 305 mm. deep, 16 gage galvanized steel channel BLADES : Airfoil shaped galvanized steel sheet. Blades positioned at 45° angle and spaced approximately 305mm. center to center External : 18 gage galvanized steel Internal : 22 gage perforated galvanized steel ACOUSTICS INSULATION : Sound Absorption Material (Non flammable) FINISH : Mill or Powder Coating (Optional)
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