Whether you are sitting in the hot seat or showing your friends your arm is Royal's ready the Dunk Tank is a crowd pleaser. Great for a fundraiser, team building or team motivation. Who wouldn't like to see the boss or principal get dunked? Features a 500 gal. tank with a clear window for everyone to see the splash. Boomerang Bouncers delivers the Dunk Tank to your location. We do need a garden hose to fill. Duh! For safety those being dunked need to be taller than the tub.