Aqua Ultraviolet AAV50073 Ultima II 1000 Filter for Aquarium

I use this filter for my 240 gallon aquarium tank and it's great.

I use 1/15hp pump 3000gph since this pump require 1000gph at 10feet head.

A little extra flow actually not an issue. I have it for a week, my water is crystal clear

and clean. Backwash is absolutely easy. Backwash, drain water, fill back water only take me

5 min to do instead of traditional drain water using tubing and fill water back, clean

canister filter etc took me at least one hour to complete.