Clear Transparent Cat Flap - Authentic Pet Tek G-SDDC Maxi Dual Glaze Clear Pet Door

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Cat Flap For Sliding Glass Door - Glass Fitting Cat Flap - Pet-Tek Maxi Dual Glaze Cat Flap. Transparent and looks stunning in glass, robust and generous in size. Ideal for a large cat or small dog, the Pet Tek Glass Fitting Cat Door in clear has a professional design and will endure year after year of daily use.

The Catwalk Clear Glass Fitting Maxi Dual Glaze pet door is designed for glass panels from (3mm – 28mm) in thickness and makes it suitable for single and double glazing applications.

This is the original and authentic PET TEK Product,

Beware of counterfeit cat flaps which are made of inferior plastic and do not carry the `Catwalk - New Zeland` logo on the flap.

The telltale on these `knock-off` products is a diagram of workman performing the impossible task of cutting through a pane of glass using a multi saw.

Glass cut-out size

X = 267mm diameter +100mm glass tolerance so overall width of glass must be 367mm.

If you do not have 367mm in the width of your glass this product will not fit. Before purchasing we highly recommend you consult a qualified glazer. 

  • Flap size: 195mm x 185mm
  • Overall size: 304mm diameter
  • Application: Glass fitting (3mm – 28mm)
  • Pet size: Large cats and small dogs
  • For sliding doors: The G-SDDC protrudes 17mm on the inside and 11mm on the outside of the door its connected to. Please ensure enough clearance for sliding doors to pass the pet door.

Please note: the pet door cannot be installed into an existing tempered glass or double glazed window. The glass panel would need to be replaced with the hole already cut at time of manufacture for the pet door to be installed.

We recommend that customers use the flap size above to cut a hole in a cardboard box to see if the cat/dog will fit through it ok.

  •  Self Lining
  •  UV stabilised
  •  Security feature
  •  Smooth quiet action.
  •  All stainless steel screws
  •  Seals against flat glass panels
  •  Self-draining condensate outlet
  •  No external screws for security
  •  Fits glass panels up to 28mm
  •  Environmentally friendly (may be recycled)
  •  Virtually unbreakable Polycarbonate construction
  •  No cavity feature, prevents dirt getting trapped in glass window
  • Four-way locking system
  • Generous flap 195x 185mm (7 1/4"X 7 11/16")
  • Supplied with full weather seal on flap
  • Moulded feather edge seal to minimise the effects of weather.
  • External self-draining outlet.
  • Easy to fit using 4 x screws

We are delighted to offer you free delivery on all orders over £50.00.

Items are packed on the day you place your order. Your package should arrive within Two to Six working days.

Once your order has been dispatched you will receive a tracking number and you will be able to track your order.

All orders must be signed for (delivery driver can sign for you at present due to Covid-19).

Our courier partners will keep you updated on the journey of your order. You'll receive SMS and email confirmation of your tracking details and they will let you know estimated delivery times on the morning of your delivery.

Our delivery partners aim to deliver all orders on time, but delays do happen from time-to-time. 

Have a query regarding your delivery?

If you have any queries regarding your delivery please email us at

If we cannot deliver your order within the specified time period then we will make every attempt to contact you and provide an expected delivery time. If this delivery time is not suitable, you can cancel your order and we will provide you with a full refund.


Please see our Return Policy For More details. 


Ask a Question
  • Can this be used on a wooden door? I am looking for a discreet cat flap to use on an internal wooden door.

    Sorry, no, this wouldn't work on a wooden door.

  • Do the fixing screws also go through the 100mm hole or are screw holes needed through the glass? And what height is recommended for the hole from the floor level?

    Hello - this cat flap needs a 267mm diameter vent hole in glass, 50mm up from the bottom of the pane. The screws go through the vent hole, not the glass. Thanks.

  • Could you please email me when back in stock

    Yes, they will be back in stock on Wednesday 20th April. Thanks.

  • When might this be back in stock please?

    These are now online to purchase. Thanks

  • Do you have a date when these kear catflaps will be available ?

    Hi Paul - we hope to get some on Monday - as soon as we have them, we'll load them onto the site so you can place an order. Thanks. Sarah

  • Can you purchase just a new seal for the cat flap ?

    Possibly - you'd need to contact the manufacturer about that directly as we do not carry spare parts. Thanks. Sarah

  • Can the sides of the frame be trimmed to fit a window pane 39cms wide?

    No need to trim it? At 39cm the window is wide enough. It has to be a minimum width of 36.7cm for it to fit. Thanks.

  • Is this available with microchip recognition/control?

    It's not, sorry.

  • Do you need an adapter to use in glass door please

    No, no adaptor needed for this one in glass. Thanks.

  • Hi Please could you explain the difference between two products on your site.. 1. Clear cat flap - transparent authentic Pet Tek GSDDC maxi dual glaze clear pet door - cat out of glass, £26.99 and 2. Clear transparent cat flap- authentic Pet Tek GSDDC maxi dual glaze clear pet door £16.89. Thank you. Julia.

    Sorry, I am not sure why that is, I will check with our web developer. They are the same product - I think the cheaper one is without postage and you can choose which postage option you'd like at the checkout - Hermes, or ParcelForce. Thanks.

Customer Reviews
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Rod P.
United Kingdom United Kingdom

Would use again

I have used this company twice to buy a specific cat flap. Delivery was good and there was no problem with ordering on the website. Would use again.

James S.
United Kingdom United Kingdom

Perfect, great product delivered quickly

Spot on, nice and straightforward.

Ross S.
United Kingdom United Kingdom

This product is great - fits my sliding doors just fine!

I needed a cat flap to fit in my sliding patio doors and this wonderful piece of kit offered the solution. The product was delivered promptly and at a great price. The lead time on glass is approx. 4 weeks atm which is why it's taken so long to be able to give a review of the product. It was installed this evening and already one of my kittens has sussed out what it is and how it works, which is good. The product looks great in the transparent casing, it's not an eye sore at all. There is zero contact between the flap and door when sliding (when the flap is closed obviously). It's amazingly quiet too, but will see if that's still the case when the kittens are bolting in and out of it during one of their funny 5 minutes..... Very happy with the product and I would recommend to others and purchase myself again. If I can offer one suggestion, it would be great if this product had a chip reader. My neighbourhood is heavily cat populated, so having a more secure entrance to the cat cave for the home team would be worth the extra expense.

Karen W.
United Kingdom United Kingdom

Excellent customer service!

Fast, efficient service, great customer service

Mrs S.
United Kingdom United Kingdom

Pet Tek Cat Flap

We have been waiting for a door to be installed. The installers were very impressed with the cat flap as were we. The cats are getting used to it slowly. I would definitely recommend this cat flap and Smart Pet Devices.

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