Brighten your space with NEST New York Grapefruit Refills for Wall Diffuser. This wall diffuser refill duo fills your home with a crisp grapefruit fragrance layered with soft floral and green notes for a bright, modern feel. Made for the NEST New York Wall Diffuser, each refill delivers days of effortless, flame-free scent with no need for matches or maintenance. Plug it into hallways, kitchens or workspaces to keep the air lightly fragranced, polished and welcoming from morning through night.