Pet Tek Clear Glass Fitting Dog Door - Transparent for Medium Size Dogs -COG

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    The Dogwalk® Glass Fitting Dog Door is manufactured from 100% high quality, high impact (PC) Polycarbonate. It is designed to fit single, double glazing and sliding windows and doors. To reduce the problem of broken flaps, associated with some other brands of dog doors, it has the added feature of the flap being able to swing higher.

    Glass cut-out size

    X = 385mm diameter +100mm glass tolerance so overall width of glass must be 485mm.

    If you do not have 485mm in the width of your glass this product will not fit. Before purchasing we highly recommend you consult a qualified glazer. 

    • Flap size: 300mm x 270mm
    • Overall size: 430mm x 451mm
    • Application: Glass fitting (3mm – 32mm)
    • Pet size: Medium to semi-large dogs
    • For sliding doors: The G-DDC protrudes 15mm on the inside and 24mm on the outside of the door its connected to. Please ensure enough clearance for sliding doors to pass the pet door.

    Manufactured entirely from high impact virtually indestructible (PC) Polycarbonate

    When you are purchasing a cat flap, please ensure: -

    • To select the most appropriate cat flap for your cat’s size, weight and needs.
    • We recommend that customers use the flap sizes to cut a hole in a cardboard box to see if the cat/dog will fit through it ok.
    • It is vital that you are confident that your cat flap purchase will fit in the desired place in your home. For example – if it is a glass installation, is the glass wide enough?

    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 sizes above to cut a hole in a cardboard box to see if the cat/dog will fit through it ok.

    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
    • Is this dog flap lockable?

      Yes, it has plastic catches on the side that you can use to lock it.

    • When will these be back in stock?

      We now have these in stock. Thanks.

    • Will you be getting these back in stock?

      Yes - they are currently in a shipping container which is being unloaded on Tuesday, so we hope to have them back on sale by Friday Mandy. Thanks.

    Customer Reviews
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    Colin J.
    United Kingdom United Kingdom


    Fitting of the door was done by a local glazing company as it went into a double glazed conservatory door and the whole glass panel had to be replaced with the hole for the dog door cut into it. Once the new glass panel had been installed fitting the dog door was simple, just a matter of connecting the inner and outer sections with four screws. The door appears to be very well made and stays closed against the elements with a magnet. Not sure how our dog (a Cavapoo) will get used it, we have so far managed to get her to go through the opening with the flap tied open and it shouldn't be too much trouble for her to push it open but one stage at a time.

    Martin J.
    United Kingdom United Kingdom

    Martin Jones & Dog Flap

    This is a most helpful and polite company, unfortunately, my medium size dog flap which I was sure would be oK did not allow for the rapid growth of my very tall and gangly puppy. Smart Pet have tried very hard to help resolve the problem but it seems I might have to design and make a bespoke flap that fit my back door? Thank you so much for all your help!

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