The Security Boss Hinge Replacement Flap features a heavy duty hinge flap connection. This hinged flap design allows the flap to travel freely without a pinch point. This means your flaps will last longer in situations of heavy use or if the installed pet door is too low and the pet is hitting the flap connection. All Security Boss products are hand built to order.
Our heavy duty hinge also features a weather seal that minimizes drafts through the hinge.
The interior and the exterior flaps are unique due to the positioning of the metal strikes on each flap. You cannot use an interior flap on the exterior side of your pet door for example.Flaps are UV protected. These flaps are also weatherized to prevent shrinking in sub-zero temperatures.