Reed Diffuser Refill - Reuse, Recycle Our reed diffuser refill is available in 2 sizes: 140ml - fits our cubic sized glassware 200ml - fits our round glassware - standard and deluxe Each box comes with 10 reeds (200ml comes with 20!) and in your choice of fragrance. Please see our Fragrance Collection page for help choosing your fragrance. To ensure longevity of your fragrance, turn your reed sticks regularly when you feel the fragrance is not as strong.