La Croix makes a Pamplemousse-flavor sparkling water, that says "grapefruit" on the can only in a small parenthetical. You can get it in Lawrence, KS, and in Chicago, IL, but, grievously, not in Lincoln, NE. It is the deliciousest La Croix flavor of them all!
Hey, I'm in Omaha and I can get La Croix pamplemousse at Whole Foods. In 12 packs. Hy-Vee carries the brand so I'm sure they could get the flavor for you if you ask nicely. I agree that it's their best flavor. And the most fun to say. :-)