Thermos Bottle Replacement Stopper – Food Grade Silicone & Steel
Thermos Bottle Replacement Stopper – Food Grade Silicone & Steel
Thermos Bottle Replacement Stopper – Food Grade Silicone & Stainless Steel
Keep your favourite thermal flask performing like new with this durable replacement bottle stopper. Crafted from food-grade silicone and 201 stainless steel, this dustproof kettle cover fits most standard thermal flasks and insulated bottles. Available in two convenient sizes, it's the quick, affordable way to restore a perfect seal and maintain outstanding heat retention.
Why You'll Love It
- Food-Safe Materials: Made from food-grade silicone and rust-resistant 201 stainless steel — no harmful chemicals, safe for everyday drinking water use.
- Superior Insulation: High-efficiency insulation design keeps beverages hot or cold for longer, restoring your flask's original performance.
- Two Sizes Available: Choose the size that suits your flask — large or small — to fit a wide variety of insulated bottle and thermos brands.
- Dustproof Protection: The fitted cover keeps the stopper clean and hygienic when not in use.
- Easy DIY Replacement: Simple, tool-free installation — no professional help needed. Swap it out in seconds and save on replacement costs.
- Long-Lasting Durability: Rust-proof and wear-resistant construction ensures a longer service life compared to standard plastic stoppers.
Specifications
| Material | 201 Stainless Steel (inner & outer) + Food-Grade Silicone |
| Color | White + Silver |
| Sizes | As shown in product images (Large & Small options) |
| Package Contents | 1 × Replacement Bottle Stopper |
| Country of Origin | Made in Mainland China |
Note: Please allow 2–3% variance due to manual measurement. Actual colour may vary slightly from images due to monitor display differences.
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Learn more: Nutrition.gov on cooking and food safety
Frequently Asked Questions
Q: What thermos or flask sizes does this replacement stopper fit?
A: This replacement bottle stopper is available in two sizes (large and small) and is designed to fit most standard thermal flasks and insulated bottles. Please refer to the product images for exact dimensions and compare them with your existing flask opening before purchasing.
Q: Is this stopper safe for use with hot beverages?
A: Yes. The stopper is made from food-grade silicone and rust-resistant 201 stainless steel, both of which are heat-tolerant and safe for use with hot and cold drinks alike. The materials contain no high-concern chemicals.
Q: How do I install the replacement stopper?
A: Installation is simple and requires no tools or professional assistance. Just remove your old or damaged stopper and press or screw the new replacement stopper into place following your flask's standard mechanism. It is a straightforward DIY replacement.
Q: Will this stopper improve my flask's insulation performance?
A: Absolutely. A worn or damaged stopper is one of the most common causes of reduced heat retention. Replacing it with this high-efficiency stopper can restore your flask's insulation performance, keeping beverages at the desired temperature for longer.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.