https://www.silicagel-desiccant.com/silica-gel-breather

https://www.silicagel-desiccant.com/silica-gel-breather'

Caption: A silica gel breather design is simple and easy to install. The arrangement is placed inside the transformer conservator and includes a pot or tube filled with fresh silica gel. This is placed above the oil level, to remove maximum moisture from the

Credit: Silica Gel Desiccant