PetSafe Aluminum dog cat flap

This door gives pets all the independence they need. Easy to install, the sturdy aluminum frame features reinforced corners for heavy-duty use by one or more pets.The soft, flexible flap is tinted and adjustable. The magnetic closing flap and lateral caulking of the flap opening form a weatherproof seal. A closing panel is included for added weather resistance or to control animal access to the door. This model is suitable for wood doors, brick walls, PVC/Upvc or metal doors, but cannot be installed on glass surfaces.