Air Vent 5005664 21.3 x 14 in. Dia. Air Hawk Mill Aluminum Turbine & Base

Features Height-21.3 in. Diameter-14 in. Color-Mill Material-Aluminum Pitch-3/12 to 12/12 Vent Type-Wind Turbines UV Resistant-Yes Screen Included-No Wildlife Guard-No Shape-Circle Paintable or Stainable-No Net Free Area-132 sq. in. Maintenance free top and bottom dual bearing system Turbine head and base design Aluminum construction Part of a balanced attic ventilation system for year round airflow Helps to fight heat and moisture buildup inside an attic as well as ice dams in cold climates Requires intake ventilation for proper performance Specifications Size: 21.3 x 14 in. Dia. Country of Origin: United States Weight: 6.3 lbs