Feliway Optimum Enhanced calming refills for cats

3 Pack of Refills for the Feliway Diffuser....Diffuser not included, just refills!! FELIWAY Classic Refills, for use with FELIWAY Classic Diffuser, are a clinically proven solution to help comfort and reassure your cat at home. The continuous effect helps cats and kittens adjust to changes in their environment, feel comfortable in a new home and avoid unwanted behaviours like urine spraying, scratching and hiding.Keep plugged in continuously and replace refills every 30 days. Replace the diffuser device every 6 months. Each diffuser and refill covers up to 750 square feet. Best results are typically seen after 3 to 4 weeks of continuous use. Use only FELIWAY Refills with FELIWAY Diffusers. Expires 2026