Odor-Free Living – Carbon filters compatible with Litter-Robot 4 utilize activated carbon’s natural absorption to eliminate odors and maintain a fresh home environment. Precision Fit – Designed for seamless installation, these filter replacements fit securely into the Litter-Robot 4, preventing leakage and enabling quick, hassle-free maintenance. Advanced Odor Neutralization – Each filter contains densely packed, odor-absorbing activated carbon particles for effective air purification. Long-Lasting Freshness – These charcoal filters continuously trap odors, helping maintain a consistently fresh environment and extending time between replacements. Optimized for Pet Health – Made with safe, non-toxic materials, the filters help purify the air your pet breathes. Color: Black Material: Sponge Size: Thickness: 10 mm Package Contents: 6 × Filter Replacements Note: Color may vary slightly due to screen settings and lighting conditions. Measurement tolerance: ±1–3 cm.