Cowiewie Pet Door for Wall - Upgrade Double Flaps Durable Lockable - Large Up to 100 Lb

  • DIFFERENT SIZE OPTIONS - Cowiewie Pet Door fits pets of many sizes. Large Size - Flap Opening: 11.4"W x 17.7"H. Frame: 14.57"W x 20.87"H. For pets up to 100 lbs.
  • TELESCOPING TUNNEL - Our large dog doors is perfect for indoor or outdoor doors/walls with a thickness of 1.18-7.28 inches. The widened channel and two-way access design make it easier and more convenient for your pets to go in and out.
  • UPGRADE SILICONE DOOR FLAP - Cowiewie doggy door extreme weather available. Silicone flap keeps soft in cold weather and can be used in all seasons. It has a good anti-ultraviolet effect, and is naturally odorless, pet friendly.
  • SLIDE-IN PANEL & DOUBLE FLAP - Slide-in closing panel locks for security when your pet is not using the dog tunnel and adds extra insulation; Double flap provides weatherproofing and energy efficiency and helps protect against wind and rain etc.
  • HIGH QUALITY AND DURABLE - Our dog door frame for interior and exterior wall is made of non-rusting high-quality aluminum alloy, thickened and thickened to 1.35mm to ensure sturdiness and durability. It also provides excellent thermal insulation.
  • REPLACEMENT FLAP: You can find replacement flaps in the store by searching for "Cowiewie replacement flaps." If the door flap has been damaged within 6 months due to manufacturer's workmanship and material defects, please contact us for replacement.

Product Description

1 Small 2 Medium 3 Large


Cowiewie door flaps have been upgraded with new processes, making them stronger and more tear-resistant. High-quality materials make it usable in extreme weather and have a longer service life.

Are the made for cold weather and how cold are they good for?

It can be used in cold weather, which is why we have silicone flaps instead of plastic flaps. Silicone can withstand extreme cold temperatures - 40° without hardening, curling and deformation, and has no peculiar smell.

Can this be installed on a metal door?

Yes, our dog doors can be installed on any type of door, including metal doors, wooden doors, PVC doors, etc.

Can this pet door be installed on a brick wall? Are extensions included?

Yes, our pet doors can be installed directly on doors/walls 1.18"-2.36" thick without using extensions. And we have included extensions. The wall thickness is 2.36"-7.28" , it is recommended Install or partially install the extension.

What breed of dog/cat is this dog/cat door suitable for?

We've included 3 sizes of pet doors to fit many types of pets (dogs, cats). It is recommended that you measure your pet's shoulder height and weight before choosing the right size pet door.


Measure the height from your pet's belly to the ground. And mark the height on the wall, locate the suitable installation site for the Pet Door.


According to the template, cut the inside and outside sides of the wall. Choose whether to install the extension according to your actual situation.


Apply glue to the frame, insert the inner and outer frames into the holes cut out and clamp tightly until the glue is completely solidified.


Please use the screws or rivets we provide to secure the wall in place, so your pet can have the freedom to go outside on his own time!

Return this item for free
Free returns are available for the shipping address you chose. You can return the item for any reason in new and unused condition: no shipping charges

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