Silicone O-Ring Gasket Replacement for Thermoflask 40oz – 9 Pack
Silicone O-Ring Gasket Replacement for Thermoflask 40oz – 9 Pack
Silicone O-Ring Gasket Replacement for Thermoflask 40oz – 9 Pack
Keep your favorite water bottle performing like new with this premium silicone gasket replacement set. Designed to fit the Thermoflask 40oz bottle, these transparent O-rings create a secure, leak-proof seal every time — no more drips or spills in your bag. Made from food-grade silicone, they are durable, flexible, and easy to swap out whenever needed.
Whether your original gasket has worn out, gone missing, or simply needs refreshing, this 9-piece pack gives you plenty of spares to keep on hand. A simple, affordable way to extend the life of your bottle and maintain a perfectly tight seal.
Key Features
- Perfect Fit: Designed specifically for Thermoflask 40oz water bottles
- Generous Pack: Comes with 9 replacement O-ring gaskets per bag
- Food-Safe Silicone: Made from high-quality, transparent silicone — safe for everyday use with beverages
- Leak-Proof Seal: Ensures a tight, reliable seal to prevent leaks and spills
- Flexible & Durable: Resists wear, heat, and cold for long-lasting performance
- Easy to Replace: Fits snugly and installs in seconds with no tools required
Specifications
- Material: Silicone
- Color: Transparent
- Package Size: 12 × 20 × 1.8 cm
- Package Includes: 1 bag containing 9 silicone O-ring gaskets
- Compatibility: Thermoflask 40oz water bottles
- Country of Origin: Made in China
Note: Please allow 1–2 cm measurement tolerance due to manual sizing. Colors may appear slightly different depending on your monitor settings.
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Frequently Asked Questions
Q: What size water bottle is this silicone O-ring gasket replacement compatible with?
A: This silicone gasket replacement set is designed specifically for the Thermoflask 40oz water bottle. The O-rings are sized to create a snug, leak-proof fit for that model. Please verify your bottle's compatibility before ordering.
Q: How many gaskets are included in the pack?
A: Each pack includes 9 transparent silicone O-ring gaskets, giving you multiple replacements so you always have a spare ready when needed.
Q: Are these O-rings safe to use with drinks?
A: Yes! These replacement gaskets are made from food-grade silicone, making them safe for use with water, hot beverages, and cold drinks. They are BPA-free and designed to withstand a range of temperatures.
Q: How do I replace the gasket on my Thermoflask bottle?
A: Simply remove the old or worn gasket from the lid's groove and press the new silicone O-ring into place. No tools are required — it snaps in easily in seconds for a secure, leak-free seal.
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.