SureFlap Microchip Pet Door Connect Without Hub - Flap Opening is 6 3/4 inches by 7 inches
PetSafe Electronic SmartDoor, White, Large with Extra PetSafe Electronic SmartKey for PetSafe Electronic SmartDoor - Bundle
HIDROSIL Magnetic Key Pet Door for Cat and Dog, Upgraded Interior and Exterior Pet Screen Door with 2 Auto-Sensing Keys, 4 Locking Modes, Safe and Durable Frame (11.81" x 11.41"x 3.93", White)
FreeStanding Cat Door with Magnetic Keys, Upgraded Interior and Exterior Pet Door with 2 Auto-Sensing Keys, 4 Locking Modes, Safe and Durable Frame (11.81" x 11.41"x 3.93", White)
FreeStanding Cat Door with Magenetic Keys, Upgraded Interior and Exterior Pet Door with 2 Auto-Sensing Keys, 4 Locking Modes, Safe and Durable Frame (11.81" x 11.41"x 3.93", Brown)
PlexiDor Performance PDE Electronic Pet Door for Dogs and Cats - Wall Mount Dog Door - Bronze, Large