Purple Dew Cap X2 Replacement

This simple but effective item is the heart and soul of keeping your purified water contained. This Dew Cap in is the industry standard cap for glass Italian made 3 and 5 gallon carboys. Its standard integrated cup seals both the interior and exterior neck of the bottle. Release tab on the outer edge makes removing the cap a breeze. For reference, outside dimension for the bottle opening would be 2.165 inches. If you currently have a snap cap for the bottle the outside dimension of that cap is about 2.75 inches