Costco members can get the ThermoFlask 40-Ounce Stainless Steel Bottles 2-Pack for just $19.99 at the warehouse.
Please note that a Costco membership isn't required to purchase it online, but it's $9 more. Nonmembers will pay a 5% fee at checkout.
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Become a Costco member by signing up for a membership. To learn more, read our complete Costco membership guide.
Our team gathered up the best Costco Warehouse savings tips to help you maximize your savings at Costco.
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