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MATERIAL
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)
SCREEN : Fixed Expanded Metal (Optional)
FEATURES - 23% Free Area
- Airfoil blades and sound absorption material
which provide effective sound attenuation
- Weather protection
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