Cowiewie Pet Door for Wall, 2024 Upgrade Double Silicone Flaps, Aluminum Alloy Frame and Telescoping Tunnel, Extreme Weather Durable Dog Door and Cat Door (Pets Up to 100 Lb)

DIFFERENT SIZE OPTIONS - Cowiewie Pet Door fits pets of many sizes. Medium Size - Flap Opening: 9.25"W x 12.9"H. Frame: 12.28"W x 15.94"H. For pets up to 40 lbs.
TELESCOPING TUNNEL - Our doggie doors for medium dogs 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."

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