Ruby red grapefruit seltzer with other natural flavors. 0 calories per can. No sodium. Gluten-free. Vegan. Naturally calorie-free. No sweeteners. Refreshingly natural. Family made since 1882. Our family has been making seltzer since 1882 when our great-great-grandfather created what he called the best tasting bubble recipe with only three ingredients-water, bubbles & great taste. We continue to craft seltzer without sugar, sweeteners, sodium or caffeine, and they are always vegan and gluten-free....