ATLANTA — Coca-Cola is rolling out its Dasani Sparkling line, five naturally flavored, unsweetened and lightly carbonated waters. Dasani Sparkling is available in a 12-oz. 12-pack, and in 20-oz. and 1-liter PET PlantBottle sizes. The line marks the latest addition to the Dasani brand. Last year, the brand added flavored water enhancers, Dasani Drops.