8pcs Carbon Filters for Automatic Litter Box Robot 4, Thickened and Durable Alternative for Odor Elimination and Controls Moisture : Amazon.ca: Pet Supplies
Where is the carbon filter on my new LR4? : r/litterrobot
Litter-Robot 4 Carbon Filter (6x) - RobotShop
Litter-Robot 4 Carbon Filters by Whisker, 6 Pack, Custom Fit Carbon Filter for Litter-Robot 4, Absorbs Odors & Controls Moisture : Amazon.ca: Pet Supplies
Litter-Robot 4 Carbon Filters Installation Guide
Litter-Robot by Whisker - Smell that? 👃 No you don't! 😸 Litter-Robot includes a carbon filter for top-tier odor control. Swap the filter monthly to ensure your Litter-Robot is in tip-top shape.
PET STANDARD Replacement Carbon Filters & 1 Replacement Seal Strip Set Compatible With Litter-Robot 3® Self-Cleaning Cat Litter Box, Pack of 10 - Walmart.com