Boasting a 12 year warranty, our Jumbo Tanks are proudly made in Zimbabwe using the leading technology in the world. The tanks are triple layered. The inner layer is a white food grade high density polyethylene. This is hygienic and allows for easy inspection of the interior. The middle layer is black and ensures total exclusion of sunlight to prevent the growth of algae. The robust outer layer is an attractive modern grey colour to suit any property.