Have you tried Amazon? I found this 2.75 gallon bowl on there.
It looks like it's decent quality, and has high ratings.
The other thing you might look at, especially if you're not needing a lid on it, is apothecary jars. I've seen some of those at 2+ gallons, easily.
Originally Posted by DizzyD
Does anyone know where I can get a large fishbowl. I've seen several in pictures and youtube videos but I can't seem to find any accept for the biorbs. I'm looking for between a 2 and 4 gallon bowl, not the drum style bowls, just a regular shape bowl. The largest I have been able to find is a 1.5 gallon on walmarts online store and a 1.75 gallon at petsmart that has a stem like a large brandy/wine glass. I contemplated the wine looking glass but I'm too afraid of the chance of the stem breaking because I read a review or 2 where that actually happened apparently for no reason.