Photo 1 of PATAPLUS MEDIUM Pet Door Aluminum Dog Door, Large Dog Door with Slide-in Lock Panel and Magnetic Flaps, Durable Aluminum Frame, Energy Efficient, Easy to Install, Heavy Duty, Medium

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Photo 1 of PATAPLUS MEDIUM Pet Door Aluminum Dog Door, Large Dog Door with Slide-in Lock Panel and Magnetic Flaps, Durable Aluminum Frame, Energy Efficient, Easy to Install, Heavy Duty, Medium Photo 2 of PATAPLUS MEDIUM Pet Door Aluminum Dog Door, Large Dog Door with Slide-in Lock Panel and Magnetic Flaps, Durable Aluminum Frame, Energy Efficient, Easy to Install, Heavy Duty, Medium Photo 3 of PATAPLUS MEDIUM Pet Door Aluminum Dog Door, Large Dog Door with Slide-in Lock Panel and Magnetic Flaps, Durable Aluminum Frame, Energy Efficient, Easy to Install, Heavy Duty, Medium