Delapan Cat Litter Box Charcoal Filters fits LR 4 Litter Box Replacement Carbon Odor Filters, 20-Pack

Litter Box Filters Pad, 5mm in thickness, with simple diy, it well fits Model LR4 Litter Box
Made of Activated Carbon, it can absorb and filter odors for quite a long period, disposable, do not rinse
20 Pack Delapan New Carbon Activated Filter, Enough for Substitute, Average Is 2-3 Months Between Replacements
Easy Replacement, lifting the lid of the litter box, remove the old filter and replace it with a new one