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

The Cat Mate 221G Large Cat Flap in Grey is a generously sized 4-way locking cat door designed for larger cats and many small dogs. Its modern grey frame, transparent flap and simple manual locking system make it an excellent choice for pet owners who want reliable access control without complicated electronics.

Designed for everyday use, the Cat Mate 221G features a brush-sealed flap with magnetic closure to help reduce draughts and weather penetration while providing smooth, quiet operation.

Large Cat Flap for Bigger Cats & Small Dogs

With a generous 180mm x 180mm flap opening, the Cat Mate 221G provides considerably more room than a standard-sized cat flap.

It can be suitable for larger cats and many smaller dog breeds, including pets similar in size to:

• Maine Coons
• Ragdolls
• British Shorthairs
• Norwegian Forest Cats
• Bengals
• Yorkshire Terriers
• Miniature Schnauzers
• Border Terriers
• Dachshunds

Please measure your pet before ordering. Breed examples are only a guide because individual animals vary considerably in size. Compare your pet's width and height with the 180mm x 180mm flap opening to make sure the door is suitable.

4-Way Locking Cat Flap

The Cat Mate 221G 4-way lock gives you control over when and how your pet can use the door.

• In & Out – Your pet can enter and leave freely
• In Only – Your pet can enter but cannot go back outside
• Out Only – Your pet can leave but cannot come back through the flap
• Fully Locked – Prevents access in either direction

This makes it easy to change your pet's access throughout the day, including keeping your cat safely indoors overnight.

Brush Seal & Magnetic Closure

The transparent pet flap incorporates a brush seal and magnetic closure designed to help the flap return to its closed position after your pet has passed through.

The sealing system also helps reduce draughts and weather penetration compared with a basic unsealed pet flap, while helping provide quieter operation.

Modern Grey Cat Flap

The grey Cat Mate 221G provides an attractive alternative to traditional white or brown pet doors and works particularly well with modern grey doors, panels and contemporary exterior finishes.

Please remember that colours displayed on phones, tablets and computer monitors can vary, so the product should not be purchased on the assumption that it will be an exact colour match to a particular door or window finish.

Suitable for a Range of Doors

The Cat Mate 221G can be installed into many different types of suitable door and panel, including:

• Timber doors
• uPVC door panels
• Suitable metal doors
• Garage doors
• Utility room doors
• Suitable garden building panels

The cat flap is self-lining for installations up to 50mm (2 inches) thick, helping provide a neat finish around the cut-out.

Wall Installation

The Cat Mate 221G can also be installed through a suitable wall. For wall installations, the optional Cat Mate CP400 Wall Liner can be used to extend and neatly line the opening.

The wall liner is available separately and additional sections may be required depending on the thickness and construction of the wall.

Cat Mate 221G Key Features

• Genuine Cat Mate 221G Large Cat Flap
• Modern grey frame
• Large 180mm x 180mm flap opening
• Suitable for larger cats and many small dogs
• 4-way manual locking system
• Transparent pet flap
• Brush-sealed design
• Magnetic flap closure
• Designed to help reduce draughts
• Quiet opening and closing action
• Self-lining for doors and panels up to 50mm thick
• Optional CP400 wall liner available separately
• Suitable for DIY installation
• 3-Year Manufacturer's Guarantee

Cat Mate 221G Dimensions

Overall Size:
235mm x 252mm

Cut-Out Size:
204mm x 221mm

Flap Opening:
180mm x 180mm

Maximum Self-Lining Thickness:
50mm (2 inches)

Important: Check all measurements against your door, panel and pet before cutting or installing the cat flap.

What's Included?

• 1 x Cat Mate 221G Grey Large Cat Flap
• Transparent pet flap
• Integrated 4-way locking mechanism
• Fixings
• Installation instructions

Frequently Asked Questions

Is the Cat Mate 221G suitable for large cats?

Yes. The 180mm x 180mm opening is designed to accommodate larger cats. However, individual cats vary in size, so we strongly recommend measuring your pet before ordering.

Will a Maine Coon fit through the Cat Mate 221G?

The 221G is commonly suitable for larger cats, but Maine Coons can vary significantly in size. Rather than relying on breed alone, compare your cat's measurements with the 180mm x 180mm flap opening.

Can small dogs use the Cat Mate 221G?

Yes. The large opening can accommodate many small dogs. Check your dog's body width and height against the flap dimensions before ordering.

What are the Cat Mate 221G cut-out dimensions?

The required cut-out is approximately 204mm wide x 221mm high. Always check the supplied installation instructions before making the final cut.

How thick a door can the Cat Mate 221G fit?

The Cat Mate 221G is self-lining for doors and panels up to approximately 50mm (2 inches) thick.

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

Yes. For wall installations, the optional Cat Mate CP400 Wall Liner can be used to extend and line the opening. The number of sections required will depend on the wall thickness.

Does the Cat Mate 221G help reduce draughts?

Yes. The flap incorporates a brush seal and magnetic closure designed to help the flap close correctly and reduce draughts and weather penetration.

What does the 4-way lock do?

The manual lock provides four settings: in and out, in only, out only and fully locked. This gives you control over when your pet can enter or leave the property.

Does the Cat Mate 221G require batteries?

No. The Cat Mate 221G is a manual 4-way locking cat flap and does not require batteries, a microchip or an electronic collar key.

Is this a genuine Cat Mate cat flap?

Yes. This is a genuine Cat Mate 221G Large Cat Flap supplied with the manufacturer's installation instructions.

Why Choose the Cat Mate 221G Grey Large Cat Flap?

The Cat Mate 221G Grey Large Cat Flap combines a generous pet opening with straightforward 4-way access control, weather-resistant sealing and a modern grey appearance.

For owners of larger cats or suitably sized small dogs who don't require microchip or electronic access control, the Cat Mate 221G provides a simple, dependable and easy-to-use solution.