Ecosure water tanks are rotational moulded from industrial strength MDPE (Medium Density Polyethylene) using the latest in UV stabilization technologies. Bunded Liquid Fertilizer Tank 6250 LitresIt's important and highly recommended that when storing fertilizer that you have a bunded tank. This will give your tank a double wall and add protection against tank failure. Our Ecosure Tanks are UK Made and designed to give you complete customer satisfaction. This fertilizer tank is made from Medium Density Polythylene (MDPE). It comes with a 10 year guarantee.Large cylindrical water tank with large lid and option of a 1" or 2" outlet.