I run a 1800gph mag drive 9.5, but I did quiet mine down by putting rubber matting under the fuge, and under the pump itself using the mat that came with the pump. I also used a section of 6" flexible rubber hosing instead of the hard pvc piping. It's pretty darned quiet now, but dang was it 'growly' before! They put out a little heat, also, fyi.