I had an older remora and it was loud to me. Also had a tunze 9002 (replaced by 9001) and I liked it. Quit and easy to adjust. Pump went bad and I didn't see replacements anymore so jumped on an aquamaxx hob-1. I'm loving the aquamaxx but I have found that I need to take it apart and clean the hardened salt out of the air intake on the pump about once a month though.
