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EXPIRED 04/02/23
ThermoFlask 2-Pack Insulated Standard Straw Tumblers are available at Costco for a reduced price of $18.99, down from the usual $23.99. These ThermoFlask tumblers feature a vacuum-insulated and double-wall stainless steel construction, which helps maintain the temperature of your beverages. They can keep drinks cold for up to 24 hours. The straw tumblers come with leakproof lids and durable straws, making them suitable for use on the go. Additionally, the design prevents condensation, avoiding potential spills.

A Costco membership is required to score this deal in warehouse. Please note that it’s available online for $9 more. Pricing and inventory may vary by location.

Become a Costco member by signing up for a membership. You’ll get a $10 or $20 Costco Shop Card when you use our link. To learn more, read our complete Costco membership guide.

Check out the hottest Costco Coupon Book deals and snag savings on tech, apparel, furniture, and more.

Our team gathered up the best Costco Warehouse savings tips. This article has 28 tips to help you maximize your savings at Costco. One of the best ways to save money at Costco is to upgrade to an executive membership. If you spend more than $250 per month at Costco, the additional benefits of an executive membership can easily pay for themselves. These benefits include an annual 2% reward on qualified Costco purchases, as well as additional savings on services like travel and insurance.

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