purchased this filter a few weeks ago from amazon for $98 shipped and I have to say I am impressed. I was running 2 aquaclear 110
hob on my 125
gal. and it kept up biologicly but the water was never clear, after running the aquatop 2 days it was crystal clear. The filter came with filter foam, carbon, ceramic rings, and bio-balls to place in the 4 media baskets.
IMO there wasn't enough media included so I added more. It seems to have a very good flow (rated at 525
gph). Not sure about the 9 volt
uv light..it seems to have to much flow to be really effective but it is designed to spiral the water around the bulb..maybe this gives it enough exposure??? If anyone is looking for a good canister on a budget I would say this is the way to go. Not sure how it compares to fluval or other names but I have to say it is dead silent, and my water is crystal clear. Very happy