Looks like an Eheim to me too. But then my APS external can also be found with several other makes written on the side if you google "External filter 9w UV". Couldnt vouch for the internals however, not sure if they would be different.
I bought my first canister filter, which is an Odyssea CFS 500. I paid $57 for it on AquaTraders.com, and it works beautifully! It's very quiet and seems to be quite well built. Customer service there is good too.
I kind of figured finding a second good filter for a ridiculously low price was pushing it, but thought I'd check with you first. Glad I did!!