ONLY Compatible with Litter-Robot 3 Self-Cleaning Cat Litter Box. If any doubt, please check product dimensions. Length is about 10 inch. Width is about 3.6 inch. Thickness is about 0.6 inch. The Replacement Seal Strip Set: 2 long strips and 2 short strips: Long (11.5" x 0.38" x 0.38"), Short (4.5" x 0.38" x 0.38") Our premium carbon filter absorbs odors in the waste drawer. Our Replacement Seal Strip Trap unpleasant odors as well. It is advised to replace the Carbon Filter every month. We recommend replacing the seal strips when you notice they are worn flat or peeling up. Please feel free to contact us if you have any questions about our products, we'd like to help you!