Walex Bio-Pak Natural Enzyme Deodorizer, Paper and Waste Digester breaks down tissue in just 24 hours. This rapid breakdown of waste and tissue will keep your sensors clear, lubricate valves, and prevent odors. All you need to do is drop in a packet; no spills and no measuring. • Formaldehyde-free formula• 10 packets in a resealable zip-top pouch• Alpine fresh scent Cleans sensors, lubricates valves Simply drop in a packet into the tank 10 packets included | Walex Bio-Pak Natural Enzyme Deodorizer, Paper and Waste Digester - Alpine Fresh