Click to expand Tap to zoom Aquaforest Di Resin by Elite Koi Save £-21.95 £21.95 | / 1000ml - £21.95 1000ml Title 1 2 3 4 5 6 7 8 9 10+ Quantity Quantity Add to cart Demineralization Resin is perfect for the production of fully demineralized water. It guarantees water free of silicates, carbon dioxide and other contaminants.