Sustainable Elimination Natural Activated Carbon Filters Compatible With For Litter Robot 4 Available In Two Quantities Features: *Package contents: This package includes carbon filters specifically designed to control in litter trays. It is the perfect choice for households with cats. We recommend replacing the filter once during the summer months. *Clean Air: The high-density activated carbon filter, with its microporous structure, effectively eliminates unpleasant , fresh and clean air in your home. This filter is highly practical and reliable. *Reliable material: Our carbon filters are made of soft and natural activated carbon materials, the safety of your pets. They are designed to not cause any harm or discomfort. *Easy to Install: The filter can be easily replaced in just a few minutes, allowing for a hassle-free installation process. Simply follow the instructions provided. *Compatibility: Our carbon filters are perfectly for Litter Robot 4 They fit seamlessly without any gaps, optimal performance and maximum control. Specifications: Part Name:Carbon Filters Material:Activated Carbon Size:No Color:Black Package Content: 8pcs deodorizing cotton or 10pcs deodorizing cotton Note: 1. The real color of the item may be slightly different from the pictures shown on website caused by many factors such as brightness of your monitor and light brightness. 2. Please allow slight manual measurement deviation for the data. _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_ _x000D_