15″ H x 10.53″ W x 1″ D Premier Pet™ Plastic Pet Door (Part number: GPA00-16345)

The pet door gives your pet the freedom to come and go, even when you are not at home. The flexible, tinted flap is easily pushed open by your cat or dog and falls back into place using a magnetic closure. This helps keep the outside heat or cold out of your home, providing a higher level of energy efficiency. When it’s time for your pet to stay inside, simply snap the included closing cover onto the inside frame of the pet door. This simple DIY project will provide freedom your pet will love.
Features
Installation is adjustable to fit doors 1/16 inch to 2 inches thick
The snap-on cover provides extra security and controlled pet access
Works best for pets 1-40 pounds with a flap opening size of 8 1/8 inch by 12 1/4 inch. A large-sized door is best for pets 1-100 pounds with a flap opening size of 10 1/8 inches by 16 1/4 inches