Military Surplus Rocket Box Ammo Can 20mm have been part of rafting trips since the 1950's.  20mm Rocket Boxes (as they are referred to on the river) feature a tension clamp-down lid, a rubber seal gasket, and carrying handles. 

A rafting trip doesn't officially start until the first Rocket Box is loaded on your rig. The Military Surplus Rocket Box Ammo Can 20mm is most commonly used to store the Eco Safe Toilet System tanks as well as the toilet seat, toilet paper, cleaning supplies, etc. Military Surplus Rocket Box Ammo Can 20mm can also be used for food, trash, recycling materials, tools, ash from your fire, along with hundreds of other uses on river and off. These dry boxes are used, military surplus and can vary in their condition and waterproofness.