---
product_id: 576565198
title: "Lessmon Thin Cat Door for Windows, Pet Doors and Sliding Door, Safety Pet Door with 4 Way Lock, Weatherproof Cat Flap for Thin Door and Wall(Medium, 6.7in x 6.3in Flap)"
brand: "lessmon"
price: "฿2725"
currency: THB
in_stock: true
url: https://www.desertcart.co.th/products/576565198-lessmon-thin-cat-door-for-windows-pet-doors-and-sliding
store_origin: TH
region: Thailand
---

# 4-way lock modes Fits ultra-thin doors/windows Easy DIY installation Lessmon Thin Cat Door for Windows, Pet Doors and Sliding Door, Safety Pet Door with 4 Way Lock, Weatherproof Cat Flap for Thin Door and Wall(Medium, 6.7in x 6.3in Flap)

**Brand:** lessmon
**Price:** ฿2725
**Availability:** ✅ In Stock

## Summary

> 🐾 Unlock freedom for your furry VIPs—because they deserve the best!

## Quick Answers

- **What is this?** Lessmon Thin Cat Door for Windows, Pet Doors and Sliding Door, Safety Pet Door with 4 Way Lock, Weatherproof Cat Flap for Thin Door and Wall(Medium, 6.7in x 6.3in Flap) by lessmon
- **How much does it cost?** ฿2725 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/576565198-lessmon-thin-cat-door-for-windows-pet-doors-and-sliding)

## Best For

- lessmon enthusiasts

## Why This Product

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

## Key Features

- • **Hassle-Free Installation:** Includes templates, screws, and double-sided tape for quick, no-fuss setup.
- • **Sleek, Ultra-Thin Design:** Only 0.78in thick—perfect for sliding doors, windows, and thin walls without bulky tunnels.
- • **Durable ABS Plastic Frame:** Built to last with smooth edges for pet safety and long-term use.
- • **Weatherproof & Energy Smart:** Sealing strips and magnets keep bugs out and reduce heat/cold loss year-round.
- • **Total Control with 4-Way Lock:** Customize pet access—Free In & Out, Fully Locked, In Only, or Out Only for ultimate security.

## Overview

The Lessmon Thin Cat Door is a medium-sized, weatherproof pet flap designed for thin doors and windows. Featuring a sturdy ABS plastic frame just 0.78 inches thick, it fits sliding glass doors and walls without the need for bulky tunnels. Its innovative 4-way lock system offers customizable pet access control, while sealing strips and magnets ensure energy efficiency and pest protection. Easy to install with included templates and hardware, this cat door combines convenience, security, and durability for your small pets.

## Description

Lessmon Thin Cat Door for Windows, Pet Doors and Sliding Door, Safety Pet Door with 4 Way Lock, Weatherproof Cat Flap for Thin Door and Wall(Medium, 6.7in x 6.3in Flap)

## Features

- Freedom & Convenience - Through the great cat door, your cats or small dogs can go in and out easily and quietly. They won’t feel trapped and you no longer bother to open or close the door for them.
- Safer with 4 Lock Modes - By slide the switches, you can adjust the access mode to Free In & Out, Fully Locked, Out Only, In Only, control your pet’s access and keep away stray animals.
- No Tunnel Part, No Need to Cut - The panels are only 0.78in thick and tightly fitted, suitable for windows, wooden door and sliding glass door, etc. With 7.7 x 7.5in outer size, 6.7in x 6.3in flap, the cat door for window great for cats and small dogs with waist circumstance shorter than 19.8in.
- Durable & Comfortable - Made of sturdy ABS plastic, the cat door interior door is ready to serve your pets for long time. With sealing well strip, magnet for aligning, it can keep away bugs and the smell of cat litter, reduce the loss of cold air in summer and the loss of heat in winter.
- Simple Installation - Package includes detailed instructions(with templates on), 8 screws and their caps, double-sided tapes. You can cut the template off and install the cat door for sliding glass door easily.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Mattress thickness | 0.78 Inches |
| Minimum compatible thickness | 0.1 Inches |
| Frame material | Plastic |
| Dog Breed Size | Small |
| Model Number | Lessmon Screen Cat Door |
| Color | White |
| Product Dimensions | 1.98 x 19.05 x 19.56 cm; 272 g |
| Item Weight | 272 g |

## Product Details

- **Size:** 7.7x7.5x0.78in
- **Brand:** Lessmon
- **Colour:** White
- **Material:** Plastic
- **Closure type:** Magnetic

## Images

![Lessmon Thin Cat Door for Windows, Pet Doors and Sliding Door, Safety Pet Door with 4 Way Lock, Weatherproof Cat Flap for Thin Door and Wall(Medium, 6.7in x 6.3in Flap) - Image 1](https://m.media-amazon.com/images/I/61jjiTUAT2L.jpg)
![Lessmon Thin Cat Door for Windows, Pet Doors and Sliding Door, Safety Pet Door with 4 Way Lock, Weatherproof Cat Flap for Thin Door and Wall(Medium, 6.7in x 6.3in Flap) - Image 2](https://m.media-amazon.com/images/I/71qcmS-V75L.jpg)
![Lessmon Thin Cat Door for Windows, Pet Doors and Sliding Door, Safety Pet Door with 4 Way Lock, Weatherproof Cat Flap for Thin Door and Wall(Medium, 6.7in x 6.3in Flap) - Image 3](https://m.media-amazon.com/images/I/71FDWe5BfsL.jpg)
![Lessmon Thin Cat Door for Windows, Pet Doors and Sliding Door, Safety Pet Door with 4 Way Lock, Weatherproof Cat Flap for Thin Door and Wall(Medium, 6.7in x 6.3in Flap) - Image 4](https://m.media-amazon.com/images/I/71vWskaMydL.jpg)
![Lessmon Thin Cat Door for Windows, Pet Doors and Sliding Door, Safety Pet Door with 4 Way Lock, Weatherproof Cat Flap for Thin Door and Wall(Medium, 6.7in x 6.3in Flap) - Image 5](https://m.media-amazon.com/images/I/71X3Y9pk19L.jpg)

## Available Options

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

## Questions & Answers

**Q: Does this actually work for a glass window?**
A: It does work with a glass window but you need to put a piece of plexiglass or wood above it to block the open space in the window

## Frequently Bought Together

- Thin Cat Door for Windows, Pet Doors and Sliding Door, Safety Pet Door with 4 Way Lock, Weatherproof Cat Flap for Thin Door and Wall(Medium, 7.7 * 7.5 * 0.78in)
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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-02-23*