As the name tells you, the Poly Under Deck Water Tanks hide away under your deck, keeping out of sight while still providing you with a reliable and solid method of storing your water. Made from durable UV stabilised plastic, you do not have to worry about plastic breakdown. The tank is also made from food-grade plastic to meet the Australian water tank standard AS4766. Waterplex offers under deck water tanks at three different heights to allow you to maximise your water storage under your home or deck. Multiple tanks can be linked together to increase capacity, and they do not even have to be side by side. These tanks can hold from 1,800 litres to 2,000 litres of water.