Honest fit

Compatibility list.

The bottles we’ve tested with CapTool. The same list applies to every cap in the catalog because every cap shares the same 28mm gasket family. Updated when new bottles are added or removed.

Last updated: May 2026. CapTool is built around the 28mm beverage finish family with a flexible silicone gasket that extends fit to nearby sizes. The Rinse, Drip, Pour, Mist, Wash, Feed, Trap, Weight, Peg, and Seal caps all use the same fit. Test fit before regular use. We don’t claim “universal”; bottle finishes vary by brand.

Cap-specific fit notes.

Most caps in the catalog snap directly onto the bottle and use the same 28mm thread. A few have additional fit considerations.

• Drip: works on the bottles above, but 1L and 2L bottles give the longest sustained flow. 16.9oz bottles empty quickly.
• Peg: requires cutting the bottle in half. Clear bottles work best because the contents stay visible. Not recommended for soda bottles with deep bottom dimples.
• Seal: fits over Rinse, Drip, Pour, Mist, and Wash, not directly onto a bottle thread. The bottle list above does not apply.

A note on “universal.”

We don’t use the word until testing supports it across every common bottle finish, and even then only after legal review. The list above reflects current testing. New bottles get added as we test them. If a bottle you use isn’t listed, tell us and we’ll add it to the queue.

Reporting a fit issue.

If a bottle on this list doesn’t fit yours, batch variation may be the cause. Email support@trustncredibility.com with the bottle brand, size, and a photo. We’ll replace the cap or refund.