About this item

• Energy efficient structural foam molded plastic
• Works with walls ranging in thickness from 4.75 to 7.25 inches
• Nylon for draft restrictor, Innovative Double Vinyl Flap design creates energy efficient air pocket for maximum insulation
• For Use With Designer Series Ruff Weather Pet Doors ONLY; Designer Series Ruff Weather Pet Door sold separately
• Large Size: 9.75″ x 17″ Flap Size
• Need Assistance? E-mail Ideal Pet Products expert US-based customer care specialists seven days a week!