Product Name:Purified water storage tank Deionized and Ultra-pure Water Storage Tanks What are some common materials used to make purified water tanks? Purified water tanks can be made from a variety of materials, depending on the intended use and application. Some common materials used to make purified water tanks include: Stainless steel: Stainless steel is a durable and corrosion-resistant material that is commonly used in the food and beverage industry. It is easy to clean and maintain and can withstand high temperatures and pressures.