Large Dog Door for Exterior Doors, Cutout Size 12.2''W x 18''H, Heavy Duty Double Flap for Extreme Weather, Energy-Efficient, Easy to Assemble, Lockable Panel Included

["Robust Construction – Features a heavy-duty aluminum alloy frame with a lock for added stability. Built to handle everyday use for medium to large dogs","Hassle-Free Installation - Say goodbye to complicated setups! Our large dog door features a straightforward, DIY-friendly installation process. With a comprehensive guide included, it's easy to integrate into any home, offering your pet independence without sacrificing security","Easily Replaceable Flap - Prioritizing your convenience and your pet’s comfort, the URSPET comes with a durable and easily cleanable flap. Replace as needed to keep the door looking and functioning at its best","Unmatched Weather Resistance - Engineered to stand against extreme weather, our dog doors for large dogs feature a superior magnetic seal. Keep the warmth in and the cold out, enhancing your home's energy efficiency","Ultimate Pet Freedom - Grant your large dog the autonomy to explore. Equipped with a powerful magnetic attraction, the door is effortless for your pet to push open but securely closes behind them, ensuring a safe return"]