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Quantity
1
Description
Fits all ThermoFlask® Chug Lids and Spout Lids. Two O-Rings are included in the pack. One large O-Ring (with tabs) fits inside the lid while a smaller O-Ring fits in the drinking spout cap while also being BPA free.
O-Ring installation in...
Reviews
4.8
110 ratings
5
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3
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1
Perfect fit. Quick ship. Fair price.
E
Edwin · April 19, 2026
New ring sets are better than the old ones!! Love them! Thanks!
Debbie · March 2, 2026
The oring was easy to remove and replace. Very happy with the purchase.