Air Vent 17.8 in. H X 20 in. W X 20 in. L X 12 in. D Mill Aluminum Brace Turbine tier-discount-11 Grate Shape: Round

Grate Shape: Round

This wood bird feeder is constructed of Fir components

Its style lends a graceful finish to any door

Nail Type: Drywall

Non foaming

Air Vent 17.8 in. H X 20 in. W X 20 in. L X 12 in. D Mill Aluminum Brace Turbine tier-discount-11 Grate Shape: RoundA non electric alternative to ventilation, these vents use the natural force of wind and air pressure to spin and vent out stale attic air. They do it with a series of specially shaped vanes that catch the wind and provide rotary motion. This pulls hot, humid air from the attic. Turbine vents provide a low cost ventilation alternative in areas where wind speeds of at least 5 mph are typical. UPC: 046462203504 Manufacturer Part No: TIBS0000 Brand Name: