SureFlap Tunnel Extender for Cat Flaps Brown TUN001BR Pack of 6

£54.00 £48.99
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Pack of 6

For wall installations, tunnel extenders can be stacked together to create a longer approach tunnel to the Brown SureFlap Microchip Cat Flap SUR001BR.

Each tunnel extender adds 50mm to the overall length of the tunnel. We recommend 6 tunnel extenders for an average cavity wall depth of 300mm.

When calculating how many extenders are required, divide the length of the tunnel (when measured in mm) by 50 to give number required. We recommend that you ensure that there is an additional tunnel extender length to give a lip to the installation for the pet to use as a step into the wall installation. (The depth of the Sure Flap pet flap is around 50mm when you use in the calculation of the number required).

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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