I just looked at the source for the 4348 page with the Flash file on it, and near the bottom is this, in the code:
'30257310','4348','Rübe','0,15 €',
'30257340','4348','Rübenkraut','0,15 €',
'30265450','4348','Rübe','0,15 €',
'30285260','4348','Terrarium-Stroheinsatz','0,00 €',
'30285270','4348','Terrarium-Glas','0,90 €',
'30830150','4348','Meerschwein stehend','0,36 €',
'30830170','4348','Meerschwein sitzend','0,36 €',
'30830180','4348','Meerschwein sitzend','0,41 €',
So there's the glass, 30 28 5270. Whether the picture of it will eventually show to be clicked on is anyone's guess, but they do update the Flash files from time to time.