Dunk Tank... Our 350 gallon dunk tanks are a big hit on those HOT summer days. All of our tanks have front windows or we can provide banners that hang across the front of the tank. Includes free delivery (within 35 miles of Nassau, NY), setup and instructions. Normally takes 20-45 minutes to fill. 3 balls are included. The perfect addition to any birthday party or summer event. Dunk tanks are also great for fund raising. *We now offer weekend rentals.