---
product_id: 468952440
title: "Wall Liner - Compatible with Large Closer Pets, Cat Mate & Dog Mate Pet Flaps 221 & 357, White (Pack of 1)"
brand: "cat mate"
price: "$51.24"
currency: USD
in_stock: true
url: https://www.desertcart.us/products/468952440-wall-liner-compatible-with-large-closer-pets-cat-mate-dog
store_origin: US
region: United States of America
---

# broad compatibility range 50mm modular wall sections customizable length cuts Wall Liner - Compatible with Large Closer Pets, Cat Mate & Dog Mate Pet Flaps 221 & 357, White (Pack of 1)

**Brand:** cat mate
**Price:** $51.24
**Availability:** ✅ In Stock

## Summary

> 🚪 Upgrade your pet’s freedom with precision-fit wall liners!

## Quick Answers

- **What is this?** Wall Liner - Compatible with Large Closer Pets, Cat Mate & Dog Mate Pet Flaps 221 & 357, White (Pack of 1) by cat mate
- **How much does it cost?** $51.24 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/468952440-wall-liner-compatible-with-large-closer-pets-cat-mate-dog)

## Best For

- cat mate enthusiasts

## Why This Product

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

## Key Features

- • **Sleek White Finish:** Clean, modern look that blends effortlessly with your home’s aesthetic.
- • **Enhanced Durability:** Add sealant and duct tape for a moisture-resistant, stable, and long-lasting installation.
- • **Tailored Tunnel Length:** Customize your pet flap tunnel length by combining or trimming liners to suit your space.
- • **Universal Compatibility:** Works flawlessly with Closer Pets Large Cat Flap, Cat Mate Large Cat Flaps, and Dog Mate models.
- • **Seamless Wall Integration:** Easily install through walls or thick doors with 50mm modular liners for a perfect fit.

## Overview

The Cat Mate Wall Liner is a versatile 50mm modular extension designed for seamless installation of large pet flaps through walls or thick doors. Compatible with multiple Cat Mate and Closer Pets models, it allows customizable tunnel lengths for a perfect fit. Enhanced with recommended sealant and duct tape, it ensures a moisture-resistant, stable, and durable pet door solution in a sleek white finish.

## Description

Cat Mate Wall Liner - Compatible with Large Closer Pets, Cat Mate & Dog Mate Pet Flaps 221 & 357, White (Pack of 1)

## Features

- EASY WALL INSTALLATION: These 50mm (2”) sections can be added to specific products, allowing for seamless installation through walls or thicker door panels
- CUSTOMIZABLE LENGTH: Each liner is 50mm (2”) long. For a 20cm (7.87") tunnel, simply use 4 sections, or cut down additional liners to adjust the length as needed
- COMPATIBILITY: Works with a range of cat flaps, including Closer Pets Large Cat Flap, Cat Mate Large Cat Flaps, and Cat Mate Large Glass Fitting Cat Flap
- SEALANT RECOMMENDATION: For added durability, a thin bead of sealant between each liner ensures a moisture-resistant tunnel, while duct tape around the joint improves stability and ease of handling
- COMPATIBILITY: Compatible with Closer Pets Large Cat Flap (Ref. CP221W), Cat Mate Large Cat Flap (Ref. 221W and 221B), Cat Mate Small Dog Door (Ref. 221WD), and Cat Mate Large Glass Fitting Cat Flap (Ref. 357W)

## Product Details

- **Size:** Large
- **Brand:** Cat Mate
- **Color:** White Wall Liner
- **Material:** Polypropylene
- **Mattress Thickness:** 2 Inches

## Images

![Wall Liner - Compatible with Large Closer Pets, Cat Mate & Dog Mate Pet Flaps 221 & 357, White (Pack of 1) - Image 1](https://m.media-amazon.com/images/I/61a0UBNjwoL.jpg)

## Available Options

This product comes in different **Color** options.

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**Shop now:** [https://www.desertcart.us/products/468952440-wall-liner-compatible-with-large-closer-pets-cat-mate-dog](https://www.desertcart.us/products/468952440-wall-liner-compatible-with-large-closer-pets-cat-mate-dog)

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-04-26*