Deionised water, also known as DI water, is water that has almost all of its mineral ions removed. It’s purer than distilled water making it ideal for industrial applications. Use it to cool, lubricate and manufacture products due to its ability to stop machinery from corroding quickly. We stock a selection of deionised water from TUW in various sizes ranging from 5 litres up to 25 litres. Browse our range of deionised water below or alternatively, scroll through our entire selection of building equipment or contact our experts for more information.