700mL of water
The Hydro Current is a 2013 Water Warriors blaster that holds 700mL of water. The Hydro Current is a blaster that looks like it has a pump but it doesn't have an external one. It needs 4 "AA" type batteries to power the pump, just like the Nerf Super Soaker Electrostorm, Lightningstorm and Thunderstorm. It is classified as a Motorized Blaster.