---
product_id: 550605672
title: "Lessmon Cat Door Flap for Interior Exterior Doors, Outer 7.76x7.5x0.78in, M | Fits Thin Doors & Walls, 4-Way Lock for Safety, Weatherproof & Durable, Easy to Install, Also for Sliding Doors"
brand: "lessmon"
price: "3260 kr"
currency: ISK
in_stock: true
reviews_count: 8
category: "Lessmon"
url: https://www.desertcart.is/products/550605672-lessmon-cat-door-flap-for-interior-exterior-doors-outer-7
store_origin: IS
region: Iceland
---

# 4-way lock modes for ultimate control Weatherproof sealing keeps climate in Easy install with included template & screws Lessmon Cat Door Flap for Interior Exterior Doors, Outer 7.76x7.5x0.78in, M | Fits Thin Doors & Walls, 4-Way Lock for Safety, Weatherproof & Durable, Easy to Install, Also for Sliding Doors

**Brand:** lessmon
**Price:** 3260 kr
**Availability:** ✅ In Stock

## Summary

> 🚪 Unlock your pet’s freedom with style and security!

## Quick Answers

- **What is this?** Lessmon Cat Door Flap for Interior Exterior Doors, Outer 7.76x7.5x0.78in, M | Fits Thin Doors & Walls, 4-Way Lock for Safety, Weatherproof & Durable, Easy to Install, Also for Sliding Doors by lessmon
- **How much does it cost?** 3260 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/550605672-lessmon-cat-door-flap-for-interior-exterior-doors-outer-7)

## 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

- • **DIY Friendly:** Comes with clear instructions, template, screws, and tape for a hassle-free install.
- • **Built to Last:** Durable ABS plastic frame with magnetic closure seals out bugs, odors, and weather.
- • **Freedom to Roam:** Let your pets come and go quietly without hassle or interruptions.
- • **Tailored Security:** Four lock modes give you full control over your pet’s access and keep strays out.
- • **Sleek, No-Cut Design:** Fits doors up to 0.78in thick—no tunnel, no door cutting required.

## Overview

The Lessmon Cat Door Flap is a medium-sized, durable pet door designed for interior and exterior doors up to 0.78 inches thick. Featuring a sturdy ABS plastic frame, magnetic closure, and four adjustable lock modes, it offers secure, weatherproof access for cats and small dogs. Easy to install with included templates and hardware, it ensures convenience and peace of mind for pet owners seeking a sleek, no-cut solution.

## Description

desertcart.com : Lessmon Cat Door Flap for Interior Exterior Doors, Outer 7.76x7.5x0.78in, M | Fits Thin Doors & Walls, 4-Way Lock for Safety, Weatherproof & Durable, Easy to Install, Also for Sliding Doors : Pet Supplies

Review: Works great - Good quality, easy installation.
Review: Door for cats or other small animals. - Very little airflow when closed and the locking mechanism is not the greatest but the cats have figured it out and they are amazed at the ease of use. It has durability and if it doesn’t fit that’s on you or the cats because one of you created the opening. It has suitability for the purpose it was intended for.

## 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 |
|---------------|-------|
| ASIN | B0C818453F |
| Best Sellers Rank | #10,856 in Pet Supplies ( See Top 100 in Pet Supplies ) #22 in Cat Doors |
| Brand | Lessmon |
| Brand Name | Lessmon |
| Closure Type | Magnetic |
| Color | White |
| Customer Reviews | 4.4 out of 5 stars 2,371 Reviews |
| Dog Breed Size | Extra Small, Medium, Small |
| Frame Material | Acrylonitrile Butadiene Styrene (ABS) |
| Manufacturer | Lessmon |
| Manufacturer Part Number | Lessmon Screen Cat Door |
| Material | Plastic |
| Material Type | Plastic |
| Mattress Thickness | 0.78 inches |
| Maximum Compatible Thickness | 0.78 inches |
| Minimum Compatible Thickness | 0.1 inches |
| Minimum compatible thickness | 0.1 inches |
| Model Number | Medium |
| Number of Items | 1 |
| Pet Type | Cat, Dog, Small Animal |
| Size | 7.76x7.5x0.78 inches |
| Target Audience | Cats, Medium Dogs, Small Dogs |
| Unit Count | 1 Count |

## Product Details

- **Brand:** Lessmon
- **Color:** White
- **Material:** Plastic
- **Mattress Thickness:** 0.78 inches
- **Size:** 7.76x7.5x0.78 inches

## Images

![Lessmon Cat Door Flap for Interior Exterior Doors, Outer 7.76x7.5x0.78in, M | Fits Thin Doors & Walls, 4-Way Lock for Safety, Weatherproof & Durable, Easy to Install, Also for Sliding Doors - Image 1](https://m.media-amazon.com/images/I/61jjiTUAT2L.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

## Customer Reviews

### ⭐⭐⭐⭐⭐ Works great
*by G***. on August 21, 2026*

Good quality, easy installation.

### ⭐⭐⭐⭐⭐ Door for cats or other small animals.
*by J***. on May 24, 2026*

Very little airflow when closed and the locking mechanism is not the greatest but the cats have figured it out and they are amazed at the ease of use. It has durability and if it doesn’t fit that’s on you or the cats because one of you created the opening. It has suitability for the purpose it was intended for.

### ⭐⭐⭐⭐ Inexpensive but works
*by J***O on May 18, 2026*

I replaced an older cat door that we had feeding from our basement window to our enclosed back porch. It matched up perfectly with the holes of my previous door so that's great. I'd replace the basement window with plexiglass and then cut a hole for the cat door. I needed to use my own nuts and bolts to clamp it into place. The included hardware was very limited. It has independent latches for in and out. They're kind of difficult to operate. The felt sealing the opening fell out after a day. But overall good value considering the price.

## 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)
- PetSafe Interior Cat Door: 2-Way Locking, Indoor Pet Door Flap - Tinted Privacy Door for Cat Litter Box or Pet Feeder, Built-in Door Lock, Durable Door Frame, DIY Easy Install, Hardware Kit Included
- Depets Large Cat Door (Outer Size 9.9" x 9.2"), 4 Way Locking Cat Flap Door for Interior Exterior Doors, Weatherproof Pet Door for Circumference < 23"

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*Product available on Desertcart Iceland*
*Store origin: IS*
*Last updated: 2026-09-14*