Best Seller | HydroTote, Small, Transparent The HydroTote is a collapsible jug that holds up to 20 L (5 US gallons) or 10 L (2.5 US gallons). It's perfect for customers that get their saltwater, RO water, or DI water at their local fish store. When not in use, it folds and compresses to take up... ... more HydroTote, Small, Transparent The HydroTote is a collapsible jug that holds up to 20 L (5 US gallons) or 10 L (2.5 US gallons). It's perfect for customers that get their saltwater, RO water, or DI water at their local fish store. When not in use, it folds and compresses to take up... Petco.com | | $14.99 go to store |