hario 01 100-count coffee natural paper filters, 3-pack set (total of 300 sheets) (japan import) by hario hario size: one pack 3 sets of 100 filters it fits v60 size and is suitable for 1 to 2 cups of coffee. *since hario manufactures filters in multiple factories, there might be slight differences in paper color and thickness. hario confirmed this does not affect brewing time or taste.