Key features

• •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.