Large Classic Pet Door

Features : For pets up to 100 pounds. Grip-trak insulated, locking security cover. Soft transparent single flap for maximum energy efficiency. Ultraseal all weather, energy conserving flap system reduces energy loss in winter and summer. Insulating, non-rusting security cover has dual locking pins to prevent removal from the exterior. Telescoping adjustable frame creates its own protective inner frame in doors from 1/16″ to 2″. Adjustable sill with extra strong magnets hold the flap in place for a tight weather seal. See-through flap design aids in training. Easy-to-follow installation manual. Cut out size : 10.75″ x17.5″. Flap size : 10″ x 15″.