5 Liter Dama fermenter for test batches?

Hi,

I brew small amounts of beer, both 1 and 2.5 gallon batches. However, due to the significant amount of trub that invariably settles in my one-gallon test batches, I'm searching for a slightly larger carboy.

Recently, I came across a 5 liter Dama swing top bottle:

http://www.store.homebrew4less.com/5-Liter-Glass-Dama-Swing-top-Single-Bottle/productinfo/BC1397-1/

While it's not mentioned in the link above, I was told that the glass may not be rated for the amount of pressure generated from the process of fermentation. However, I wonder if anyone has used them for this purpose anyway. With that in mind, is anyone aware if the one-gallon glass bottles often used for test batches are also rated for fermentation?

Thanks.

 

Thanks for the input, MrOH. After a couple incidents of vigorous fermentation, I've gotten into the habit of putting a blowoff tube on my carboys for the first few days, and haven't had any problems since. Seems like that would alleviate any potential issues of pressure with this 5 liter bottle.