Felight Antibacterial Non-Clumping Cat Litter 20L is the perfect antibacterial cat litter to neutralise any bad smell for up to 10 days! It keeps your litter trays hygienic and fresh. The fast-acting product uses patented Antibacterial SilverFresh™ Technology which has gentle, yet effective antibacterial properties. You can rely on Felight for a clean, safe litter tray and happy, healthy cats. What is SilverFresh™ technology? SilverFresh Technology uses Silver Ion Complexes which have a long history in the medicine and hygiene fields and are what helps stop the growth and development of bacteria – keeping those nasty smells away! Quantity: 4.2 lbs.Manufacturer: Bob Martin.