HydraPak 500 ml Stow Bottle - 17 fl. oz. | REI Co-op
500 ML to OZ - Howmanypedia.com
Detailed guide of 500 ml to oz conversion
Amazon.com : evian Natural Spring Water 500 mL/16.9 Fl Oz (Pack of 6), Bottled Naturally Filtered Spring Water in Individual-Sized Bottles : Grocery & Gourmet Food