Meet the MIAOTONG 3-Flap Dog Door for Wall, engineered to provide secure, comfortable access for large dogs up to 100 pounds

The unit features an expandable opening that fits wall thicknesses from 3 9/16 to 6 11/16 inches, making it versatile for many homes and retrofit projects

The flap opening measures 10 1/8 inches wide by 16 7/8 inches high, while the frame presents a clean silhouette that blends with contemporary interiors

A three-flap design enhances flow and adds a layer of insulation, so your living space stays comfortable year-round

Why this dog door stands out Energy saving insulation: An extra insulating flap works with the double flap system to resist drafts and temperature swings

Weather-ready performance: The design is built to withstand a broad temperature range, from -20 °F to 120 °F, making it suitable for varied climates

Reliable seals: Optimised brush seals create a soft, snug seal that reduces air leakage and helps block insects

Thoughtful aesthetics: The door is designed with European and American aesthetics in mind, ing a stylish accent that complements your wall

DIY-friendly installation: Step-by-step templates and guides help you set it up confidently, even if this is your first project

Durable construction: A sturdy aluminum frame and robust materials aim for long-term use in busy households

Adaptive fit: Telescoping tunnel design adapts to wall thickness while maintaining a clean, integrated look

In everyday use, imagine your pet approaching the door after a walk, stepping through the comfortable, wind-blocking entry, and continuing indoors with minimal effort

The dual-layer design helps maintain a consistent indoor feel, while the brush seals reduce the chance of stray insects intruding on warm summers or chilly winters

Practical scenarios and care Households with large dog breeds or frequent indoor openings benefit from the extra space and dom the 3-flap system provides

Homes in variable weather can rely on the insulating setup to mitigate drafts while keeping pets happy and independent

Easy maintenance: wipe-clean surfaces and periodic inspections help maintain seal integrity over time

All of this is supported by responsive after- service

If you have questions or need support, MIAOTONG assistance to help you get the most from your large dog door and ensure it aligns with your needs

FAQ Q: Will this dog door fit my wall thickness

A: Yes—it fits walls 3 9/16 to 6 11/16 inches thick, using an adjustable telescoping tunnel

Q: Is installation difficult or complex

A: No—comes with templates and a step-by-step guide for straightforward DIY setup