O-Rings for Hydro Flask Standard Narrow Mouth Flex Lids (8 Pack)

• Replacement lid gasket seal o-rings for Hydro Flask Standard (Narrow) Mouth Flex bottles.
• Compatible with Hydro Flask bottles with the Standard Mouth Flex Cap and Standard Mouth Flex Straw Cap. Not compatible with other models or brands.
• Molded from FDA Grade silicone (BPA Free, Food Grade) for a safe, clean, and leak-proof seal. Safe for use with both hot or cold beverages.
• Package contains eight (8) o-ring gaskets. Exact match to the seals that came with your bottle to seal it up like brand new (unlike inferior aftermarket replacements).

Restore your old, dirty, or leaking bottle to new with Captain O-Ring’s replacement cap gaskets for Hydro Flask Standard (Narrow) Mouth lids/caps.

This gasket is compatible with HydroFlask Standard Mouth Flex Caps and Standard Mouth Flex Straw Caps.

Please note, this gasket is NOT compatible with Hydro Flask wide-mouth caps, non-flex caps, and any other brands or models beyond those listed and shown in the photos.

Molded from FDA Grade silicone, these o-ring gaskets are BPA-Free and Food Grade. Unlike some of the inferior aftermarket gaskets out there, these are molded from an exact mold of the o-ring that came with your bottle when it was brand new. That means your new gasket will fit right onto your cap and seal exactly like it did when you first owned it.

Don’t replace your whole bottle or cap when it’s just a leaky gasket seal that needs replacing to get your bottle and cap sealed back up to new performance.

Dishwasher safe, and safe to use with hot or cold drinks, just like the gasket that came with your bottle and cap when it was brand new!

Manufactured and warrantied by Captain O-Ring LLC. Proudly assembled in the USA!