🔹 Premium Thermal Flask Lid – Replace the Lid, Use Your Flask Like New

The lid is the most important part for heat retention, yet it’s also the part that wears out fastest—causing leaks and heat loss. No need to throw away your whole flask. Just replace the lid.

✅ Made from BPA-free virgin plastic, safe for hot water
✅ Airtight rubber seal keeps heat longer and prevents leaks
✅ Fits most 1.5L–3L flasks (Rang Dong, Lock&Lock, and similar models)
✅ Easy to replace at home, saves money, and helps reuse old flasks

A small accessory but a must-have for homes, offices, and restaurants.
👉 Replace the lid and make your flask work like new again!

Excellent Heat Retention
Made with premium 304 stainless steel and an airtight seal, it helps keep liquids hot or cold for longer while minimizing heat loss

Excellent Heat Retention
Made with premium 304 stainless steel and an airtight seal, it helps keep liquids hot or cold for longer while minimizing heat loss

Safe & Health-Friendly
Crafted from food-grade 304 stainless steel, BPA-free, rust-resistant, and safe for hot water use

Wide Compatibility
Designed to fit many common thermos brands and sizes (1.5L–3L), making replacement easy at home

Durable & Cost-Saving
A smart replacement solution that extends the life of your thermos, reduces waste, and saves money compared to buying a new bottle