Silica gel is used in breather transformers for controlling the level of moisture and prevents it from entering the equipment. They are mainly useful in protecting the transformer oil from the damaging effects of moisture. If you want to buy this product, then contact Swambe Chemicals. We are well known manufacturer and supplier of silica gel breather transformer. For more information, just visit our website at https://www.swambe.com/products/silica_gel_breather_transformer or call us on 9879203377.