Wood Cork Stopper for Thermos & Vacuum Flask – 2 Pack

Seal It Right with Natural Wood Cork Stoppers

Keep your favorite thermos, vacuum flask, or kettle performing at its best with these durable Wood Thermos Cork Plug Stoppers. This convenient 2-pack gives you a reliable replacement lid cap crafted from natural wood, designed to create a secure, airtight seal that keeps your beverages hot or cold longer. Whether your original stopper is worn, cracked, or lost, these cork plugs are an easy, affordable fix.

Why You'll Love These Cork Stoppers

• Natural Wood Construction: Made from smooth, finished wood for a clean, safe seal — free from high-concern chemicals.
• Secure Airtight Fit: Designed to fit snugly into standard thermos and vacuum flask openings, preventing leaks and maintaining temperature retention.
• Durable & Long-Lasting: Sturdy enough to handle daily use while remaining easy to insert and remove.
• 2-Pack Value: Get two stoppers so you always have a spare on hand for home, office, or outdoor adventures.
• Versatile Compatibility: Suitable as a replacement for a wide range of thermos bottles, vacuum flasks, kettles, and similar beverage containers.
• Easy Replacement: No tools required — simply press the cork plug in place for an instant, reliable seal.

Product Specifications

• Material: Natural Wood
• Quantity: 2 pieces per pack
• Use: Replacement stopper/plug for thermos, vacuum flask, kettle, and bottle
• High-Concern Chemicals: None
• Country of Origin: Made in China

Perfect For

These cork stoppers are ideal for anyone who wants to extend the life of their drinkware. Use them at home, at the office, on camping trips, or whenever you need a quick replacement for a lost or damaged thermos lid. A great addition to your kitchen accessories toolkit!

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For tips on maintaining your thermos and beverage containers, visit the U.S. Consumer Product Safety Commission (CPSC) for guidance on safe household product use and materials.

Learn more: RTIC Outdoors

Frequently Asked Questions

Q: What size thermos or vacuum flask do these wood cork stoppers fit?

A: These wood cork plug stoppers are designed to fit standard-sized thermos and vacuum flask openings. We recommend measuring the inner diameter of your bottle's opening and comparing it to the stopper dimensions before purchasing to ensure a proper fit.

Q: Are these wood cork stoppers food-safe?

A: Yes, these cork stoppers are made from natural wood and contain no high-concern chemicals, making them suitable for use with beverage containers. They are designed to provide a clean, safe seal for your thermos or vacuum flask.

Q: How do I install the wood cork plug into my thermos?

A: Installation is simple — no tools required. Just align the cork stopper with the opening of your thermos or vacuum flask and press it in firmly until it sits snugly and creates a secure seal. Remove by gripping and gently pulling upward.

Q: Can I use these stoppers on kettles and other bottles?

A: Absolutely! These versatile wood cork plugs are suitable as replacement stoppers for thermos bottles, vacuum flasks, kettles, and a variety of similar beverage containers with compatible opening sizes.