This exquisitely scented NEST x Pura Smart Home Fragrance Diffuser Refill Duo lets you replenish your current fragrance or switch to a new one. Uplift your senses with this bestselling fragrance[Comma] Grapefruit. This NEST x Pura Smart Home Fragrance Diffuser Refill Duo features the iconic scent’s exhilarating blend of pink pomelo grapefruit and watery green notes with lily of the valley and coriander blossom. Includes two vials to be used in the Pura Smart Home Fragrance Diffuser for up to 700 hours of scent.Details: 2 x 0.33 fl oz | 19.5 mL.