Aquaclear 2000?

I am not using this one either. I have dual canisters on both of my large tanks and a mag 350 on my 30 gal. I was thinking of having it hang on the back of one of the tanks for bio filtration in case something happens to one of the canisters. Either that or RAOK ing it, but you can't very well give something away and not know what you are giving.
 
Sure it was all about 2000 in the '90s, in the '80s it was about 1999, I wonder what it about now?
 
AquariaCentral.com