Have a Reeflo Hammerhead. It has performed flawlessly for 3 1/2 years providing extreme mechanical filtration on our 300 gallon tank. We are upgrading to a larger tank and plan on running a couple of Hammerheads. Might go with a smaller Reeflo pump for the separate wet/dry system. Our Reeflo is quiet and has performed so well, I'm afraid to use another brand.