John Deere z820a Hydro Breather

I'm trying to figure out if I need one or two of part number tca19507 for my mower. The problem is that no where online can I find an actual picture of the part. All I can find is schematic pictures. If anyone with a z800 series mower can take a picture of the breather on the top of their hydros, it would be much appreciated.

Thanks in advance for any help