For system toilets Nyan-tomo Clean Toilet Deodorizing and antibacterial natural cat litter, 4.4L, usable for approximately 3 months. - Capacity: 4.4L - Features: Deodorizing, antibacterial - Pellet size: Large pellets - Usage period: Approximately 3 months - Material: Uses natural materials ★Thank you for viewing. We also sell used system toilets, so if you would like to purchase multiple items, we will discount the shipping cost. Please let us know in the comments. Thank you.