The wall conversion kit means that you can install the Electronic SmartDoor in thick walls and doors. These products are intended to be used in traditional framing and drywall construction (2×4 or 2×6). For brick installation, the outside cutout needs to house the wall entry frame to be recessed into the brick. With this kit, your small SmartDoor can fit in walls as much as 8 inches thick. The huge SmartDoor can fit in walls as much as 7 1/4 inches, plus an additional 2 3/4 inches with every additional extension tunnel (not included on this kit).
EASY INSTALLATION: Kit allows for simple installation of the Large PetSafe Electronic SmartDoor in any interior or exterior wall as much as 7 1/4″ thick
TELESCOPING DESIGN: Telescoping design allows for quick installation by framing wall cut-out
WHAT’S INSIDE: Kit includes exterior frame, tunnel, installation hardware, cutting template and detailed installation instructions
SPECIFICATIONS: For installation in interior or exterior walls 4 3/4″ to 7 1/4″ thick; thicker walls require the Wall Tunnel Extension for the Large Electronic SmartDoor, sold one at a time. Cut out size: 14 7/16 x 21 15/16 inches