What's specific about a 2508 front drag Daiwa? As far as I can see, in the 2016 Daiwa catalogue, there are 2508 models in the Exist, Caldia, Certate, Team Daiwa X, Team Daiwa R, Team Daiwa, Freams and Whisker Match ranges. Line capacities are not consistent through all of the different 2508 models.
That's the issue, there's no real consistency in the model numbers within the ranges of a single manufacturer. Cross comparing between manufacturers, based on nothing more than the numbers is a recipe for disaster.