Air Vent Airhawk RVP61 Square Top Plastic (Carton of 10)

The Air Vent Airhawk RVP61 Square Top Plastic is used to help prevent bird and rodent nesting in your attic. The net free area of this vent is 61 sq. in., and Air Vent suggests installing more louver vents than the minimum code requirement. It is recommended for 1000 sq. ft. that 4 louver vents are installed, for 1500 sq. ft. 6 louver vents should be installed, for 2000 sq. ft. 8 louver vents should be installed, and for 2500 sq. ft. 10 louver vents should be installed.