Not to be confused with the Hydra Pak, a product with a similar name but is otherwise unrelated
3L of water
The Hydro Pack is a 2013 Super Soaker accessory that holds 3L of water. It has a magazine adaptor that can be attached to a blaster that holds Water Clip Refills or any sort of related water reservoir. It is classified as an Accessory.
Compatible Blasters Edit
Any blaster that takes Water Clips or any related reservoir