Cat Door, Cat Door Interior Door, No Flap Cat Door, Easy to Install, Strong Pet Door for Cat, No Training, Small, Up to 22 LBS, Black

The Cat Door Interior Door is receiving positive feedback from customers. Users appreciate the easy installation process, with one user mentioning that it took only 15 minutes to set up. The product comes with a stencil for easy installation and different screw sizes for varying door thickness. Customers also appreciate the functionality, as the door effectively contains litter box smell and keeps the dog away from the litter. Some have even customized it to fit into furniture for a more aesthetically pleasing integration. However, there are remarks about needing to modify the product for doors of different thicknesses, and one user received the wrong size initially. Despite this, users seem satisfied with the product's performance, as it serves its purpose and is well-liked by their cats.