3-Flap Never Rust Extra Large Dog Door for Doors with Sliding Lock Panel, Steel Frame and Telescoping Tunnel, Extreme Weather Durable Doggy Door （Pets Up to 220 Lb）
Condition: New
Buy Now, Pay Later
As low as
$20.83
/ mo
Learn more
- – 6-month term
- – No impact on credit
- – Instant approval decision
- – Secure and straightforward checkout
Ready to go? Add this product to your cart and select a plan during checkout.
Payment plans are offered through our trusted finance partners Klarna, Affirm, Afterpay, Apple Pay, and PayTomorrow. No-credit-needed leasing options through Acima may also be available at checkout.
Learn more about financing & leasing here.
Selected Option
Free shipping on this product
30-day returns
Learn more
FREE 30-day refund/replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
Availability:
Only 10 left in stock, order soon!
Arrives
Friday, Mar 20
Recently Viewed
Size: Extra Large for Door
Features
- Freedom and Security: Every pet deserves the freedom to explore their home and be close to their family. Our extra large dog doors with built-in locks ensure your pet's independence while controlling access. Our well-designed xl dog door for exterior doors allow pets to pass freely while protecting your home.
- Upgraded 3-Flaps Design: The 3-flaps design of the extra large pet door provides superior protection from the elements and enhanced insulation to keep extreme temperatures out. This extra large dog door not only insulates against extreme weather conditions and drafts, but also ensures that your home remains comfortable and energy efficient.
- Superior Durability: The xl doggy door is made entirely from metal laser welding process and oxidised high quality steel and aluminium alloys to ensure durability, security and thermal insulation. Advanced welding technology ensures strength, rust resistance and a perfect finish that won't flake. Built to last, this xl pet door is ideal for multi-pet households.
- Easy Installation: Easily fits into wood, PVC, and metal doors ranging from 1.2 to 2 thick. This insulated dog door comes pre-assembled, and includes templates and detailed instructions for a hassle-free installation. This extra doggy door comes with a metal closing panel.
- Intimate Customer Service:MIAOTONG is committed to providing our customers with high-quality products and excellent after-sales service. If you have any questions about this xl dog door, please contact us, we will follow up and solve the problem for you at the first time.
Size: Extra Large for Door
Brand: MIAOTONG
Color: For Door
Material: 3-Flap(Metal Frame,Aluminum Lock)
Mattress Thickness: 2 Inches
Minimum compatible thickness: 1.2 Inches
Weight Limit: 220 Pounds
Frame Material: Metal
Dog Breed Size: Large
Product Dimensions: 3.22 x 8.5 x 18.1 inches
Item Weight: 16.96 pounds
Manufacturer: MIAOTONG
Item model number: Pet Door
Date First Available: September 23, 2024
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Friday, Mar 20
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
- Klarna Financing
- Affirm Pay in 4
- Affirm Financing
- Afterpay Financing
- PayTomorrow Financing
- Financing through Apple Pay
Learn more about financing & leasing here.
Similar Products
Top Amazon Reviews
Size: Extra Large for Door
Very sturdy (metal, not plastic) and easy to install with clear instructions. We just moved to a state where it gets really cold in the winter and this triple flap doggie door has kept my guys nice and toasty with no cold air leaking in. The magnets work great! We actually installed this in a sliding glass door without any issues, doubled up 3/4 inch plywood in the door frame. We also love that it can be locked from either inside or outside. It works perfectly and we're very happy with our purchase!
...
show more
Reviewed in the United States on November 17, 2025 by Martina Lara Martina Lara
Size: Medium for Door
This is an amazing door. Strong, sturdy and the door is absolutely weather proof. It is in my back door, on the west side of my house, with no overhang, with direct storm impact. The thing I like most about this door is that it has no cheesy interior parts and the metal parts meet in the middle. I had installed another one, highly rated and nearly the same price as this one, a month before. I have had many dog doors and this one is superior to any other I have had and worth the price.
...
show more
Reviewed in the United States on November 22, 2025 by Doris
I love this. My doggies love it as well. It’s time to replace it soon.
Reviewed in the United States on January 28, 2026 by Misoo
Size: Extra Large for Door
We got this door back in June for our dogs, but it only lasted 5 months before the screws began to strip out. I contacted the seller, and they quickly responded with a new product and sincere apology. The new door was easily installed and has been working great. Great customer service and hoping the new door will be the answer.
...
show more
Reviewed in the United States on November 16, 2025 by Randy Small
Size: Extra Large for Wall
Very well built for the price! We’ve replaced a XL petsafe door every 18-24 months and just had enough. This one is much sturdier and seals so much better with the third flap! It arrived quickly! Installation was easy, it had the needed hardware, I just added 2x4 framing around it and sealed it all together. It requires a larger hole than you’d expect, use their instructions… The XL fits our giant German Shepherd (everyone thinks he’s a Newfoundland because he is so tall and fluffy) perfectly. We thought our only option was a fancy $1,000 unit, nope! This is perfect! Will buy again, if we ever need to other than flaps in a year!
...
show more
Reviewed in the United States on December 1, 2025 by Michael Wells Michael Wells
Size: Medium(2-Flap) for Wall
I hemmed and hawed and researched every door out there prior to buying, i was replacing a dog door tht was by pet safe that sucked, didnt seal and let in tons of air, so the double flap was a real bonus, and let me tell you-this door is AWESOME! The locking panel is a huge bonus if your worried about security, but honesty Ive never used it because my door is a small one and with the flaps and the weather seal around them, I never feel a draft, the doors have a magnent that actually works even though the dogs go in and out all day. Side note I did insulate all around the door with spray foam an sealed around it with caulking on the inside and out but no air gets in or out and no bugs or anything-just the dogs. This door is so worth the money. Its adjustable, and after having it for almost a year, it still looks new and is in great shape. Best money ever spent for a dog item.
...
show more
Reviewed in the United States on July 22, 2025 by Andrea C Andrea C
Size: Extra Large for Wall
Smooth clean look, easy installation. Replacement flaps are the best part. Secure and nice thick flaps single on one side and multiple layers on the other. The extra large is perfect for the Doberman. I bought a sheet of 1/16 white plastic to line the wall with thick walls from HD. I ordered a second door i liked it so much.
...
show more
Reviewed in the United States on November 9, 2025 by Anthony Watkins
Size: Extra Large for Door
This dog door is pretty nice. Fit my door and was a good size for my 2 male German Shepherds. The sliding security door mine came with was bent/warped on arrival. Which is no big deal but it does kinda bother me when trying to line it up with the tracks to slide it on and off. I can’t exactly bend it to make it straight either so I just deal with it. Additionally, I kept all 3 “weather proofing” flaps installed. Idk if I should as they do not always close when the doggos come and go. Often, a corner will be left open and I think that’s why I keep finding flies in my house. Maybe taking out the middle panel would help, but I’m not sure. It does okay with keeping the summer heat out but I do notice it is warmer in the kitchen where this door is installed. Haven’t had it through a winter yet so we’ll see how that goes.
...
show more
Reviewed in the United States on October 2, 2025 by Katelyn Meints