Refill for Feliway Diffusers 48ml Refills for FELIWAY diffusers for cats. Help your cat feel good, calm and safe in new and stressful situations. In 48 ml format, for about 30 days. FELIWAY, by Ceva, is an anti-stress product for cats that works thanks to a synthetic pheromone that calms your cat so that everyday stressful situations do not lead to unwanted behaviours. This copy of a feline pheromone is not a medicine and is completely harmless. In addition, its smell is imperceptible to humans. With FELIWAY, your cat will feel safe and calm, even in difficult situations. FELIWAY Classic and Feliway Optimum are specially designed to help your cat overcome stressful or traumatic situations, such as moving, firecrackers or visits to the vet. FELIWAY Friends helps reduce tension and conflicts between cats. All features at a glance: Refills for FELIWAY diffusers Different models compatible with: FELIWAY Classic FELIWAY Optimum FELIWAY Friends In 48 ml format or in 3 x 48 ml savings packs A 48 ml refill lasts approximately 30 days Recommended room size: 50-70 m² Recommended by veterinarians