Premium Water Bottle Caps - Quantity of 50 Buy 2, get 10% off, Buy 3 or more, get 20% off! Includes 50 non-spill water bottle caps Fits standard snap top water bottle (2,3,5, and 6 gallon bottles-55mm) One time use only / Not for use with screw top bottle Air-tight foam seal ensures sterile environment & protection against spillage