--- product_id: 6110721 title: "4-Way-Locking Large Cat Flap (221) - Secure Lockable Door for Large Cats and Small Dogs, Easy to Install and Use, for UPVC/Metal, Wall and Wood, Brown" brand: "cat mate" price: "£35.59" currency: GBP in_stock: true reviews_count: 12 category: "Cat Mate" url: https://www.desertcart.co.uk/products/6110721-4-way-locking-large-cat-flap-221-secure-lockable-door store_origin: GB region: United Kingdom --- # Fits pets up to 14" shoulder height 4-way secure locking control Weatherproof with draught seal 4-Way-Locking Large Cat Flap (221) - Secure Lockable Door for Large Cats and Small Dogs, Easy to Install and Use, for UPVC/Metal, Wall and Wood, Brown **Brand:** cat mate **Price:** £35.59 **Availability:** ✅ In Stock ## Summary > 🐕‍🦺 Secure your pet’s freedom with style and control! ## Quick Answers - **What is this?** 4-Way-Locking Large Cat Flap (221) - Secure Lockable Door for Large Cats and Small Dogs, Easy to Install and Use, for UPVC/Metal, Wall and Wood, Brown by cat mate - **How much does it cost?** £35.59 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/6110721-4-way-locking-large-cat-flap-221-secure-lockable-door) ## 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 - • **Whisper-Quiet Entry:** Magnetic closure guarantees silent, smooth operation—no more noisy flaps disrupting your peace. - • **Tailored for Large Pets:** Perfectly fits cats and small dogs up to 14" shoulder height, ensuring freedom without compromise. - • **Ultimate Access Control:** 4-way locking system lets you decide when your pet comes and goes—full control at your fingertips. - • **Hassle-Free Installation:** Designed for UPVC, metal, and wood doors with clear step-by-step guides—get it set up in no time. - • **Built to Brave the Elements:** Weatherproof brush and rain seals keep your home cozy and protected from drafts and moisture. ## Overview The Cat Mate 4-Way-Locking Large Cat Flap is a robust, weatherproof pet door designed for cats and small dogs up to 14" shoulder height. Featuring a versatile 4-way locking system, silent magnetic closure, and easy installation on UPVC, metal, or wooden doors, it offers pet owners complete control and comfort year-round. ## Description desertcart.com : Cat Mate 4-Way-Locking Large Cat Flap (221) - Secure Lockable Door for Large Cats and Small Dogs, Easy to Install and Use, for UPVC/Metal, Wall and Wood, Brown : Pet Doors : Pet Supplies Review: Good door for cats - Door works well, magnet is strong and seals well. Review: Great! - Out of all the cat doors on desertcart, this is the best one. It installs very easy, and is very functional. I like hot you can lock it in either way, or both ways. The brown matched my wood door very nicely. ## Features - SUITABLE FOR CATS AND SMALL DOGS: Fits pets up to a shoulder height of 360mm (14") - SECURE 4-WAY LOCK: Offers control over your pet's access with options for in and out, in only, out only, or locked - SILENT OPERATION: Features a quiet, smooth action with a magnetic closure - WEATHERPROOF DESIGN: Draught- and weather-proof brush seal with a rain-proof seal to keep your home comfortable - EASY INSTALLATION: Self-lined to 50mm (2") thick, suitable for UPVC, metal, and wooden doors (not glass) - INSTALLATION MADE EASY: A detailed installation manual with a printable guide is available on this listing. Simply scroll down to “Safety Documents” under Safety and Product Resources for step-by-step instructions ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0002DHNJG | | ASIN | B0002DHNJG | | Best Sellers Rank | #63,301 in Pet Supplies ( See Top 100 in Pet Supplies ) #120 in Cat Doors | | Brand Name | Cat Mate | | Closure Type | Magnetic | | Color | Brown 221 Cat Flap | | Customer Reviews | 4.3 4.3 out of 5 stars (1,234) | | Date First Available | June 8, 2005 | | Dog Breed Size | Small | | Frame Material | Polymer | | Global Trade Identification Number | 00035368202216 | | Included Components | all | | Is Discontinued By Manufacturer | No | | Item Type Name | Large 4-Way Cat Flap Brown | | Item Weight | 1.15 Pounds | | Item model number | 221B | | Manufacturer | Ani Mate Inc | | Manufacturer | Ani Mate Inc | | Manufacturer Part Number | 221B | | Manufacturer Warranty Description | 3 year guarantee. | | Material Type | transparent | | Maximum Compatible Thickness | 2 Inches | | Minimum Compatible Thickness | 2 Inches | | Model Number | 221B | | Product Dimensions | 9.25 x 2.25 x 10 inches; 1.15 Pounds | | Size | Large (Pack of 1) | | Target Audience | Cats | | UPC | 035368202216 712321846846 | | Unit Count | 1 Count | | Weight Capacity Maximum | 75 Pounds | ## Product Details - **Brand:** Cat Mate - **Color:** Brown 221 Cat Flap - **Material:** transparent - **Mattress Thickness:** 2 Inches - **Size:** Large (Pack of 1) ## Images ![4-Way-Locking Large Cat Flap (221) - Secure Lockable Door for Large Cats and Small Dogs, Easy to Install and Use, for UPVC/Metal, Wall and Wood, Brown - Image 1](https://m.media-amazon.com/images/I/510XzhCDKYS.jpg) ## Questions & Answers **Q: Is the cat door see through transparent like glass or opaque, my cat will not go through unless she can see what is behind the door** A: It is very clear, transparent, like glass. Not opaque (my old cat door was probably what you call opaque, like a haze or film over it; this is definitely clear in comparison). **Q: Will this work in an alluminum storm door? Our cat is 16 lbs will it accomodate his size?** A: The unit may stick out depending how thick the aluminum door is. I have it in a inside wooden door at a thickness of an inch and a half. It should work but it may not be flush on both sides. I would try though. As for the cat size, I've got 2. 20 / 21lb maine coons , they walk right through with no problem whatsoever. The only door I was able to find to accommodate large cats. Again, I would buy and try. Scot **Q: How big is the required hole in the door?** A: Thanks so much for answering my question... **Q: What are the exterior dimensions of this pet door.???** A: 9"wide x 9.5" long. That's the frame exterior. It works great! I have it on an inside door to my bedroom. I can lock them out when I want to sleep. Or let them come in for morning cuddle time. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Good door for cats *by J***G on January 8, 2026* Door works well, magnet is strong and seals well. ### ⭐⭐⭐⭐⭐ Great! *by M***L on June 30, 2025* Out of all the cat doors on amazon, this is the best one. It installs very easy, and is very functional. I like hot you can lock it in either way, or both ways. The brown matched my wood door very nicely. ### ⭐⭐⭐⭐⭐ CATS, Please Exit Here !!! *by D***N on July 22, 2014* Got this after getting my head spinning reading reviews. I wanted brown because in my situation it blends perfect, but did not want to get junk just to get brown. Turns out it is a well made, good looking, good operating little door. The plastic frame is thick and strong and should never be an issue. The magnet closes the door instantly and totally quiet but a gentle nudge from the cat opens it. The door is edged with fuzz to make a draft proof seal and also is silent. I thought the locking feature would be unused since it was only leading to the cellar. Then I realized that when the cellar bulkhead door is open the cats could escape. Just a little flip of a tab and they can't come through while I have the outside door open. Great !!! I bought the large door since my cats are on the large size. It is perfect but not huge. Unless you cat is a shrimp why make him squeeze through a tight door. Time will tell about durability but so far I am totally impressed with this little door. ## Frequently Bought Together - Cat Mate Large 4-Way Cat Door for Large Cats and Small Dogs with Magnetic Catch and Durable, Rigid Flap - Brown - Cat Mate Wall Liner - Compatible with Large Closer Pets, Cat Mate & Dog Mate Pet Flaps 221 & 357, White (Pack of 1) --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/6110721-4-way-locking-large-cat-flap-221-secure-lockable-door](https://www.desertcart.co.uk/products/6110721-4-way-locking-large-cat-flap-221-secure-lockable-door) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-17*