This fits your?. Make sure this fitsby entering your model number. Durable Rubber O-Ring for most major brands of 30 ounce stainless steel tumblers Fits 14 or 30 ounce stainless steel tumblers from YETI and similar tumblers Made to create a perfect seal between the lid and tumbler. Simple and Easy to replace. Roll off the old rubber ring with your fingers and slide on the new ring Replace that old, gunked up rubber ring with a new ring to give your cup that perfect seal!