PetSafe® SmartDoor Connected Large Tunnel Extension ZAC19-17243

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PetSafe® SmartDoor Connected Large Tunnel Extension

Product Description

Are you installing your SmartDoor Connected Pet Door in a thick door or wall? These SmartDoor Tunnel Extensions will give your pet a safe and clear path through. Each extension adds 5 cm to the overall depth of the tunnel between the SmartDoor and your pet’s destination. Tunnel installation is quick and easy, requiring no tools. Simply glue or tape the extensions in place. Be sure to add enough extensions so that the final piece sticks out of the door or wall by at least 3 cm. The extension tunnel is needed for installation in metal doors thicker than 4.4 cm, non-metal doors thicker than 5.7 cm in and wall installations. Tunnel extensions come in 2 sizes, Medium and Large – be sure to purchase the size that matches your SmartDoor. This product is only compatible with the app-enabled SmartDoor Connected Pet Door. Your pet deserves the best. Trust PetSafe® to keep your pet healthy, safe and happy.


  • Perfect Fit - Provides the perfect fit when installing SmartDoor Connected Pet Door in walls or thick doors
  • Extra Space - Adds 5 cm in depth to pet door tunnel length
  • Easy DIY Install - Installation is as easy as gluing or taping each extension in place
  • Large Compatibility - Large extensions compatible with Large SmartDoor (ZPA19-17253, PPA00-17255 and PPA19-17257)

For a cavity wall of 35cm we recommend that you use 7 tunnel extensions

Pet -Tek Pet Doors Superior designs are just what you have been searching for. Our Cat Doors and Dog Doors are extremely simple to install, look attractive and once fitted into the door or wall of your home you will be happy with the look. With a Pet -Tek pet door, you can look forward to years of trouble free use. Your cat or dog will love them and you will love them also, because they have been designed to be pet friendly and keep your pet secure.


From our extensive range there is a door style and size to suit everyone whether it is to be installed into a door, a wall or glass. All pet sizes are catered for, from large to small. If you are concerned about “unwanted pets” intruding into your home then our multi-magnetic doors which require no batteries could be the solution. Click on catdoors and select G-MCD or W-MCDW and W-MCDB for more information.

Our superior range of cat doors and dog doors help eliminate problems commonly associated with pet doors, such as broken flaps and locking dials, rusting screws, too small a flap for the average cat, whilst maintaining focus of product appeal and reliability.

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