Photo 1 of Large Dog Door for Exterior Doors, Cutout Size 12.2''W x 18''H, Heavy Duty Double Flap for Extreme Weather, Energy-Efficient, Easy to Assemble, Lockable Panel Included, Sliver (L)

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Photo 1 of Large Dog Door for Exterior Doors, Cutout Size 12.2''W x 18''H, Heavy Duty Double Flap for Extreme Weather, Energy-Efficient, Easy to Assemble, Lockable Panel Included, Sliver (L) Photo 2 of Large Dog Door for Exterior Doors, Cutout Size 12.2''W x 18''H, Heavy Duty Double Flap for Extreme Weather, Energy-Efficient, Easy to Assemble, Lockable Panel Included, Sliver (L) Photo 3 of Large Dog Door for Exterior Doors, Cutout Size 12.2''W x 18''H, Heavy Duty Double Flap for Extreme Weather, Energy-Efficient, Easy to Assemble, Lockable Panel Included, Sliver (L)