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Endura Flap Door Mount Cat & Dog Door$269.99
This pet door is the best available choice for energy efficient pet doors. The double flap has even better insulation than the single flap. This pet door comes with a complete magnetic seal that keeps it closed for winds up to 50 miles an hour.
Size: 6"x11".,This pet door is the best available choice for energy efficient pet doors. The double flap has eve