I recently spoke with Adam at Watertech about the catfish. He said it is much smaller and really designed for small AG and Intex type pools. The PoolBuster pulls the water through the bag with an impeller, the batteries and motor are behind the bag.

It looks like the impeller is in front of the bag (somehow) on the catfish, maybe the batteries and motor are in the nose piece?? Anyway, it looks quite a bit smaller than a regular PoolBuster (which is acutally pretty large, almost 2 feet long when put together).

If you get one, let us know how it works, I'm thinking of getting one for my brother in-law.