---
product_id: 651607473
title: "Hakuna Pets Patio Pet Door 3.9” Height Extension, Fits Large Doors, Black"
brand: "hakuna pets"
price: "¥11861"
currency: JPY
in_stock: true
category: "Hakuna Pets"
url: https://www.desertcart.jp/products/651607473-hakuna-pets-patio-pet-door-3-9-height-extension-fits
store_origin: JP
region: Japan
---

# 3.9-inch height extension Reversible installation Powder-coated aluminum frame Hakuna Pets Patio Pet Door 3.9” Height Extension, Fits Large Doors, Black

**Brand:** hakuna pets
**Price:** ¥11861
**Availability:** ✅ In Stock

## Summary

> 🚪 Elevate your pet’s freedom with style and strength!

## Quick Answers

- **What is this?** Hakuna Pets Patio Pet Door 3.9” Height Extension, Fits Large Doors, Black by hakuna pets
- **How much does it cost?** ¥11861 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/651607473-hakuna-pets-patio-pet-door-3-9-height-extension-fits)

## Best For

- hakuna pets enthusiasts

## Why This Product

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

## Key Features

- • **Built to Last:** Durable powder-coated aluminum frame ensures long-lasting performance and sleek black finish.
- • **Versatile Fit:** Reversible extension works on top or bottom of your Hakuna Pets Large Patio Pet Door (#1131).
- • **Perfect for Big Dogs:** Accommodates pets up to 120 lbs with increased flap height for ultimate comfort.
- • **Effortless Installation:** Slide-on design with included screws makes setup quick and hassle-free.
- • **Seamless Height Upgrade:** Add 3.9 inches to fit taller sliding door tracks or larger dogs effortlessly.

## Overview

The Hakuna Pets Patio Pet Door 3.9” Height Extension is a robust, powder-coated aluminum accessory designed to increase the height of your existing large patio pet door. Compatible with Hakuna Pets Large Patio Pet Door (#1131), it offers reversible installation to fit taller sliding door tracks or accommodate larger dogs up to 120 lbs. Easy to install with included screws, this extension enhances pet access while maintaining durability and sleek aesthetics.

## Description

Extend the height of your Hakuna Pets Patio Pet Door by 3.9 inches with the Patio Pet Door Extension. Add to the top of your Patio Pet Door to fit taller sliding door tracks or install at the base of the pet door to increase the flap height for larger dogs. Compatible with the Large Patio Pet Door (#1131).

## Features

- ADD HEIGHT: Extend pet door height by 3.9"
- DURABLE CONSTRUCTION: Powder coated solid aluminum frame
- EASY INSTALL: Slide on and attach with supplied screws
- REVERSIBLE: Add to the top of your Patio Pet Door to fit taller sliding door tracks or install at the base of the pet door to increase the flap height for larger dogs
- COMPATIBLE with Hakuna Pets Large #1131 Patio Pet Door

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0BJ7LV616 |
| Best Sellers Rank | #20,253 in Pet Supplies ( See Top 100 in Pet Supplies ) #23 in Dog Doors |
| Brand Name | Hakuna Pets |
| Closure Type | Magnetic Closure |
| Color | Black |
| Customer Reviews | 3.7 3.7 out of 5 stars (66) |
| Dog Breed Size | Large |
| Frame Material | Aluminum |
| Global Trade Identification Number | 09310937111115 |
| Included Components | Extension Panel, Screws, Weatherseal Foam |
| Item Type Name | 3.9” Height Extension, |
| Item Weight | 0.8 Pounds |
| Manufacturer | Perma Products USA Inc. |
| Manufacturer Part Number | 1111 |
| Material Type | Aluminum |
| Maximum Compatible Thickness | 1 Inches |
| Model Number | 1111 |
| Number of Items | 1 |
| Pet Type | Dog |
| Size | Fits Large Doors |
| Target Audience | Dogs |
| Unit Count | 1 Count |
| Weight Capacity Maximum | 120 Pounds |

## Product Details

- **Brand:** Hakuna Pets
- **Colour:** Black
- **Material:** Aluminum
- **Mattress thickness:** 1 Inches
- **Size:** Fits Large Doors

## Images

![Hakuna Pets Patio Pet Door 3.9” Height Extension, Fits Large Doors, Black - Image 1](https://m.media-amazon.com/images/I/418dvJxgGYL.jpg)

## Available Options

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

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**Shop now:** [https://www.desertcart.jp/products/651607473-hakuna-pets-patio-pet-door-3-9-height-extension-fits](https://www.desertcart.jp/products/651607473-hakuna-pets-patio-pet-door-3-9-height-extension-fits)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-09-18*