This item cannot be shipped to the following state(s): GU,PR,VI
Each carton contains 10 Vents. The ADO Products Durovent 23-1/2 in. x 46 in. Attic Ventilation System with Built-In Baffle helps keep air moving in your attic. The ventilation system features polystyrene construction, which is lightweight and moisture resistant, and the integrated baffle means that you need no blocking material between the vent and the top plate.