Cat Mate 221G Large Cat Flap – Grey 4-Way Locking Cat Door

The Cat Mate 221G Large Cat Flap combines a modern grey finish with reliable security and excellent weather protection. Designed for larger cats and many small dog breeds, this premium pet flap allows your pet to move freely while giving you complete control through its simple and secure 4-way locking system.

Suitable for timber, uPVC and many metal or panel doors, the Cat Mate 221G is built for everyday use and features a brush-sealed, magnetic flap to help reduce draughts while maintaining smooth, quiet operation.

Ideal for Large Cats and Small Dogs

The generous flap opening makes the Cat Mate 221G suitable for many larger cat breeds as well as a variety of small dogs.

Typical pets include:

• Maine Coon
• Ragdoll
• British Shorthair
• Norwegian Forest Cat
• Bengal
• Yorkshire Terrier
• Miniature Schnauzer
• Border Terrier
• Dachshund

Always compare your pet's size with the flap opening dimensions before ordering.

Complete Control with the 4-Way Lock

The Cat Mate 221G allows you to choose exactly how your pet uses the flap.

• Unlocked – Your pet can enter and leave freely.
• In Only – Allows your pet to enter but prevents them leaving.
• Out Only – Allows your pet to leave but prevents them returning.
• Fully Locked – Prevents access in both directions.

This flexible locking system is ideal for keeping pets indoors overnight or controlling access throughout the day.

Weatherproof and Quiet Operation

The transparent flap is fitted with a full brush seal and magnetic closure to help minimise draughts, reduce heat loss and improve weather resistance. The quiet operation helps prevent the flap from slamming, creating a more comfortable experience for both pets and homeowners.

Suitable Installation Locations

The Cat Mate 221G can be installed into a variety of door types, including:

• Timber doors
• uPVC panel doors
• Metal doors
• Garage doors
• Utility room doors
• Garden buildings

It self-lines doors up to 50mm (2") thick. For wall installations, the optional Cat Mate CP400 Wall Liner is available separately.

Key Features

• Genuine Cat Mate 221G Large Cat Flap
• Modern grey finish
• Suitable for large cats and many small dogs
• Secure 4-way locking system
• Transparent weatherproof flap
• Brush seal and magnetic closure
• Quiet opening and closing action
• Self-lining to 50mm thick
• Easy DIY installation
• 3-Year Manufacturer's Guarantee

Product Dimensions

Overall Size
235mm × 252mm

Cut-Out Size
204mm × 221mm

Flap Opening
180mm × 180mm

Maximum Door Thickness
50mm (2")

What's Included?

• Cat Mate 221G Grey Cat Flap
• Transparent flap
• 4-way locking mechanism
• Fixing screws
• Installation instructions

Frequently Asked Questions

Can the Cat Mate 221G be fitted into a wall?

Yes. It can be installed through a wall when used with the optional Cat Mate CP400 wall liner, available separately.

Is this suitable for large cats?

Yes. The larger flap opening is ideal for breeds such as Maine Coons, Ragdolls, British Shorthairs and other larger domestic cats.

Can small dogs use this flap?

Yes. Many small dog breeds can comfortably use the Cat Mate 221G, provided their size is within the flap opening dimensions.

Does the flap help stop draughts?

Yes. The brush seal and magnetic closure are designed to improve weather resistance while helping reduce draughts.

What does the 4-way lock do?

The lock allows you to select fully open, fully locked, in only or out only, giving you complete control over your pet's access.

Is this a genuine Cat Mate product?

Yes. We supply genuine Cat Mate products complete with manufacturer packaging and installation instructions.

Why Choose the Cat Mate 221G?

The Cat Mate 221G offers a modern grey finish, generous flap opening and dependable four-way locking system, making it an excellent choice for homeowners looking for a secure, weatherproof cat flap for larger cats or small dogs.