Dog Box 12-4 louver w/ screen 12″W x 15.5″H

12-4 louver (12″w x 15″h overall size) ( cutout 10.5″ x 13.5″) with a grill back (10.5″w x 13.5″h overall size). Add this to a door you are building or retrofitting a existing door. Screen back has formed flange for easy mounting.