Seachem HydroTote Water Jug for more than 30 years aquarium hobbyists have turned to Seachem Laboratories for products designed by chemists and biologists. Conveniently transport water with Seachem HydroTote. This collapsible water jug holds up to 20 L (5 gallons) or 10 L (2.5 gallons) of saltwater RO water or DI water When not using Seachem Hyrotote you can easily fold it up.