Costco Clearance: Tervis 4-Pack 16 oz Tumbler Set $14.97 by Rhonda July 24, 2020 *UPDATE* 4/13/15. The Covington, WA Costco has the Tervis 4-Pack 16 oz Tumbler Set on clearance for $14.97, while supplies last. That is $25.02 off Costco’s regular price of $39.99. This … 0 FacebookTwitterPinterestEmail