---
product_id: 48050610
title: "SureFlap Pet Door Tunnel Extender, Brown"
brand: "sureflap"
price: "€ 33.33"
currency: EUR
in_stock: true
reviews_count: 13
url: https://www.desertcart.de/products/48050610-sureflap-pet-door-tunnel-extender-brown
store_origin: DE
region: Germany
---

# Compatible with SureFlap pet doors Stackable tunnel extenders for custom fit Extends installation depth by 50mm SureFlap Pet Door Tunnel Extender, Brown

**Brand:** sureflap
**Price:** € 33.33
**Availability:** ✅ In Stock

## Summary

> 🐱 Unlock seamless access with SureFlap’s tunnel extender—because your pet deserves the perfect fit!

## Quick Answers

- **What is this?** SureFlap Pet Door Tunnel Extender, Brown by sureflap
- **How much does it cost?** € 33.33 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.de](https://www.desertcart.de/products/48050610-sureflap-pet-door-tunnel-extender-brown)

## Best For

- sureflap enthusiasts

## Why This Product

- Trusted sureflap brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Modular Expansion:** Stack multiple extenders to perfectly match your wall thickness—no limits, just fit
- • **Sleek Brown Finish:** Neutral brown color blends effortlessly with most door and wall aesthetics
- • **Durable Plastic Build:** Robust plastic material ensures long-lasting performance and weather resistance
- • **Perfect Compatibility:** Designed exclusively for SureFlap pet doors, guaranteeing a flawless fit every time
- • **Seamless Wall Integration:** Easily extends pet door installation through thicker walls up to 50mm

## Overview

The SureFlap Pet Door Tunnel Extender in brown is a durable plastic accessory that extends the installation depth of SureFlap pet doors by 50mm, allowing for easy fitting through thicker walls or doors. Multiple extenders can be stacked for custom wall thicknesses, ensuring a perfect, secure fit for your cat’s microchip-enabled flap. Lightweight and designed for small pets, it blends seamlessly with your home’s décor while enhancing pet door functionality.

## Description

Tunnel Extender Brown
Pet Door - White
Pet Door Connect
Microchip Cat Flap
Cat Flap Connect

## Features

- Made of plastic material
- Can be placed in thicker walls or doors
- Tunnel element to be used for cat flaps
- Extends the installation depth up to 50 mm
- Use to install SureFlap pet doors in a wall
- Multiple tunnel extenders can be stacked together
- Extends the 70mm pet door tunnel by 50mm in length

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Asin | B00BLZOGD0 |
| Best Sellers Rank | 34,793 in Pet Supplies (See Top 100 in Pet Supplies) 83 in Doors for Dogs |
| Brand Name | SureFlap |
| Closure Type | Flap. |
| Colour | Brown |
| Customer Reviews | 4.5 4.5 out of 5 stars (2,167) 4.5 out of 5 stars |
| Dog Breed Size | Small |
| Eu Spare Part Availability Duration | 1 Years |
| Frame Material | Plastic |
| Global Trade Identification Number | 05060180390334 |
| Item Weight | 95 g |
| Manufacturer | Sure petcare |
| Manufacturer Part Number | TUN101BR |
| Material Type | Plastic |
| Maximum Compatible Thickness | 50 Centimeters |
| Model Number | TUN101BR |
| Number Of Items | 1 |
| Pet Type | Cat |
| Size | S |
| Target Audience | Cats |

## Product Details

- **Brand:** SureFlap
- **Colour:** Brown
- **Material:** Plastic
- **Mattress thickness:** 50 Centimeters
- **Size:** S

## Images

![SureFlap Pet Door Tunnel Extender, Brown - Image 1](https://m.media-amazon.com/images/I/51Ouc2qACQL.jpg)
![SureFlap Pet Door Tunnel Extender, Brown - Image 2](https://m.media-amazon.com/images/I/61ZWctnrA5L.jpg)
![SureFlap Pet Door Tunnel Extender, Brown - Image 3](https://m.media-amazon.com/images/I/41PJ1Zcdx5L.jpg)
![SureFlap Pet Door Tunnel Extender, Brown - Image 4](https://m.media-amazon.com/images/I/41Nk3sEibPL.jpg)

## Available Options

This product comes in different **Style Name** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent cat flap
*by  on Reviewed in the United Kingdom 27 January 2025*

A good value for money microchip cat flap. I have two cats attached and it works perfectly for them. Easy to install in a solid door and quiet when working.

### ⭐⭐⭐⭐⭐ Best purchase this year
*by  on Reviewed in the United Kingdom 11 May 2012*

I bought this cat flap as the local unneutered tom was coming through the normal cat flap and terrorising my cat, eating his food and then spraying urine everywhere to mark his territory. He even sprayed up the radio and also at the back of my hob. That was the final straw so I went on line and found this cat flap and I can honestly say it is brilliant! It's easy to install and it takes a couple of seconds for it to read your cat's microchip. I have no more worries about another cat coming in now and my cat is a lot more chilled. It does seem a little pricey but it really is worth it for the peace of mind and not having to get up every morning and start looking and sniffing for cat urine!!!

### ⭐⭐⭐⭐ Work great but could be cheaper
*by  on Reviewed in the United Kingdom 30 November 2015*

I bit expensive for what they are, but they do the job well. They fit together snugly to create a nice tidy tunnel. The cats love it and it's easy to keep clean. I'm only giving them four stars because 7 quid each is pretty dear for a piece of plastic!

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**Shop now:** [https://www.desertcart.de/products/48050610-sureflap-pet-door-tunnel-extender-brown](https://www.desertcart.de/products/48050610-sureflap-pet-door-tunnel-extender-brown)

---

*Product available on Desertcart Germany*
*Store origin: DE*
*Last updated: 2026-08-18*