Product Review

Lost your AquaFlask cap? No need to buy another bottle - simply purchase this replacement cap and you're good to go! Fits all 16-Ounce and 27-Ounce AquaFlask bottles. Existing AquaFlask customers: your cap may be covered under warranty. Please contact us with your order number if you'd like to file a warranty claim.

Swell bottle customers: This does NOT fit 25oz Swell bottles. It does fit medium and small Swell bottles (17oz and under).

Dimensions:
Top to bottom: 2.37"
Diameter of inner cap (plastic/silicone part): 1.31"
Circumference of inner cap (black plastic part): 4.125"
Diameter of outer cap (stainless steel part): 1.62"