Does this Denny's have Coke Zero? Usually, yes. It's on Denny's's usual fountain lineup, but nobody has checked this location yet.
Usually on the fountain at Denny's (not checked at this location yet): Dr Pepper, Root Beer, Sprite, Coca-Cola, Diet Coke, Coke Zero, Iced Tea.
Address: 959 Illinois Rt 3, Waterloo, IL
Hours: Mon–Sun 6am–3pm