Attwood 1494A5 Marine Louvered Vent – BlackUsing this Attwood marine louvered vent is a convenient way to add ventilation to your RV. It’s made from durable and lightweight ABS plastic and requres a 15-3/8″ x 2″ cutout. Mounting requires four #8 screws (not provided).Additional Info.Dimensions17 ” x 2 “Cutout15 ” x 2″What’s Included1x VentWhat’s Not IncludedMounting Screws