Does something like this exist in glass?

Hey! I'm new to making mead and have been using glass carboys and jars for a while now. They work fine but I remember once seeing a glass fermentation vessel (in a video) with a cone bottom and a tap which looked amazing for reducing loss when racking. Does anything like that exist? I can't find it anywhere. It looked something like this picture but then in glass. I'd like it to be glass so I can see what's happening inside. Thanks!