---
product_id: 48050610
title: "SureFlap Pet Door Tunnel Extender, Brown"
brand: "sureflap"
price: "HK$266"
currency: HKD
in_stock: true
reviews_count: 13
category: "Sure Flap"
url: https://www.desertcart.hk/products/48050610-sureflap-pet-door-tunnel-extender-brown
store_origin: HK
region: Hong Kong
---

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

**Brand:** sureflap
**Price:** HK$266
**Availability:** ✅ In Stock

## Summary

> 🚪 Unlock the perfect fit for your pet’s door—extend your home’s style and security effortlessly!

## Quick Answers

- **What is this?** SureFlap Pet Door Tunnel Extender, Brown by sureflap
- **How much does it cost?** HK$266 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hk](https://www.desertcart.hk/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

- • **Durable Plastic Build:** Robust plastic material ensures long-lasting performance and easy maintenance.
- • **Effortless Installation:** Quick and simple setup means your pet’s new door is ready in minutes—no hassle, just freedom.
- • **Modular Extension System:** Stack multiple tunnel extenders to tailor the depth exactly to your home’s needs.
- • **Seamless Wall Integration:** Designed to fit thicker walls or doors up to 50mm for a perfect, flush installation.
- • **Optimized for SureFlap Doors:** Specifically engineered to extend SureFlap pet doors, maintaining security and functionality.

## Overview

The SureFlap Pet Door Tunnel Extender in brown is a durable plastic accessory that extends the installation depth of SureFlap microchip pet doors by 50mm, ideal for thicker walls or doors. Its stackable design allows customization for various wall thicknesses, ensuring a secure, flush fit that enhances your pet door’s functionality and your home’s aesthetic.

## Description

Free delivery and returns on eligible orders. Buy SureFlap Pet Door Tunnel Extender, Brown at desertcart UK.

Review: Excellent cat flap - 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.
Review: Best purchase this year - 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!!!

## 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 | 17,419 in Pet Supplies ( See Top 100 in Pet Supplies ) 28 in Doors for Dogs |
| Brand | SureFlap |
| Brand Name | SureFlap |
| Closure Type | Flap. |
| Colour | Brown |
| Customer Reviews | 4.5 out of 5 stars 2,168 Reviews |
| Dog Breed Size | Small |
| EU Spare Part Availability Duration | 1 Years |
| Frame Material | Plastic |
| Frame material | Plastic |
| Global Trade Identification Number | 05060180390334 |
| Item Weight | 0.21 Pounds |
| Manufacturer | Sure petcare |
| Manufacturer Part Number | TUN101BR |
| Material | Plastic |
| Material Type | Plastic |
| Mattress thickness | 50 Centimeters |
| 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** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Excellent cat flap
*by S***N on 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 L***N on 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 G***3 on 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.hk/products/48050610-sureflap-pet-door-tunnel-extender-brown](https://www.desertcart.hk/products/48050610-sureflap-pet-door-tunnel-extender-brown)

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*Product available on Desertcart Hong Kong*
*Store origin: HK*
*Last updated: 2026-08-25*