Pet Door Tunnel Extender - By Sureflap

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The SureFlap Pet Door Tunnel Extender can be used to create a longer approach to the SureFlap Microchip Pet Door when installed into a wall.

The Tunnel Extender fits snugly onto the tunnel of the cat flaps and multiple extenders can be stacked together to form a tunnel of any length.

The tunnel of the SureFlap Microchip Pet Door is 70mm long and each tunnel adds 50mm to the length of the pet door’s tunnel.

We are delighted to offer you free delivery on all orders over £50.00.

Items are packed on the day you place your order. Your package should arrive within Two to Six working days.

Once your order has been dispatched you will receive a tracking number and you will be able to track your order.

All orders must be signed for (delivery driver can sign for you at present due to Covid-19).

Our courier partners will keep you updated on the journey of your order. You'll receive SMS and email confirmation of your tracking details and they will let you know estimated delivery times on the morning of your delivery.

Our delivery partners aim to deliver all orders on time, but delays do happen from time-to-time. 

Have a query regarding your delivery?

If you have any queries regarding your delivery please email us at

If we cannot deliver your order within the specified time period then we will make every attempt to contact you and provide an expected delivery time. If this delivery time is not suitable, you can cancel your order and we will provide you with a full refund.


Please see our Return Policy For More details. 


Ask a Question
  • When are you getting these in? Buying the product is a little pointless without it, and I only need 1...

    Sorry, we won't be getting any of these in this year. You can buy them from Sureflap directly or another retailer. Sorry that I can't be of more help.

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Pet Door

Wanted 5 for going through a wall, well packaged not installed yet.

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