OUTSIDE dimensions as follows:

Aluminum vent, scroll, 15.875 x 7.875 inches (qty 2) $25/ ea

Aluminum vent, scroll, 14 x 5.5 inches (qty 4) $25/ ea

Aluminum vent, scroll, 12 x 3.5 inches (qty 3) $25/ ea

Aluminum vent, scroll, 26.375 x 14.375 inches (qty 2) $40/ ea

Aluminum vent, scroll, 16 x 10 inches (qty 2) $40/ ea