Feliway Refill is a 48ml replacement vial for the Feliway plug-in diffuser, providing up to 30 days of continuous synthetic feline facial pheromone release. For owners already running a Feliway diffuser who need to maintain coverage without replacing the unit.

Each refill lasts approximately 30 days and covers up to 70 square metres. The vial slots into the existing Feliway diffuser unit — no new hardware needed. The pheromone is odourless to humans and continues working in the background around the clock. Replace monthly for uninterrupted coverage.

Continuous pheromone coverage is what makes diffusers effective — gaps between refills let stress behaviours re-establish. Keeping a spare refill on hand ensures the diffuser never runs dry during critical periods like vet visits, house guests, or seasonal changes.