I have the RLSS 10-i. It is DEAD SILENT!!! I like the slow start up and I don't use the adjustable speed control, but it is a nice option. Also no micro bubbles in the sump. All these skimmers today are pretty much all the same. They all have the same basic design, just different pumps and their own needle wheel. Really can't go wrong with any of those choices.

too low of a setting I believe. Getting the 6 tonight!

