Tunnel Extender
Modular extensions for thick passages
Fully modular, adjust the tunnel depth
Clip up to 6 extenders together
Robust, durable materials
Extensions
Tunnel Extender
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Designed to make your life easier.
Tunnel Extender at a glance.
Description
Expand the capabilities of your Flappie cat flap with our Tunnel Extender. Perfect for thicker walls, doors or other barriers where the standard tunnel depth is not sufficient. With our fully modular system, you can adjust the depth exactly to your needs.
Why do you need a tunnel extender?
If you are installing your Flappie cat flap in a thicker wall or door, the standard tunnel depth may not be enough to cover the entire passage. This is where the Tunnel Extender comes in! With this handy accessory, you can extend the depth of the cat flap by up to 200 mm by connecting several extenders together.
How does it work?
Each Tunnel Extender needs to be added to your cart individually. If you need 4 extenders, add 4 to your cart.
The right screws are always included.
Every Tunnel Extender already comes with the matching screw. You don't need to order anything extra.
From 3 Tunnel Extenders onwards, we automatically add longer screws so that deeper tunnels stay securely in place. This happens at checkout, no extra step required from you.
💡 We don't sell screws separately. They're a fixed part of the Tunnel Extender set.
Do I need a tunnel extender?
To determine exactly if and, if so, how many Tunnel Extenders you need, you can fill out our handy form above.
That's what's included.
1x tunnel extension
Easy to assemble!
This is how your Flappie Tunnel Extender is mounted in no time
Installing Flappie is hardly any different from conventional cat flaps and only takes a few minutes!
Frequently asked questions
Tunnel Extension
What is the maximum number of tunnel extenders I can use?
You can combine up to 6 tunnel extenders. This allows a maximum extension of 200 mm.
How do I know how many extenders I need?
We've created a handy Typeform tool (above) to help you determine. Just enter the thickness of your wall or door and we'll recommend the right number of extenders.
Does the tunnel extender fit all cat flaps?
The Flappie Tunnel Extender is specially designed for the Flappie cat flap and only fits this model.