Noise level is high. LM3 all the way if you're worried about noise, I can hear this thing through the wall loud and clear, it will only be changing water in the afternoon when it's just me working. It is louder than any other item in my reef setup.
Hey sorry I missed this question the first time around the 170 just rotates faster, I picked it over the 100 and went with #5 tubing to get my changes done as fast as possible. Stenner suggested the 170 was quieter than the 100, though they admitted not by much. I didn't get the adjustable one as I didn't see the need, but I see now they have ones where both heads are adjustable, so perhaps that'd help with long runs where the heads aren't matching well? I also have the 25psi one. Ordering a new one comes with two sets of tubes (one installed and ready to go), two weighted strainers, two 25 foot runs of tube, 6 collars and inserts to connect the tube (I used 4, didn't destroy any and no leaks, so that's a plus to have spares). The instructions are simple as the pump is pretty simple.
Only thing I didn't forsee: the tubes want to move as it runs. Each burst of pressure causes some movement in tubes, so secure the ends in a drain, the sump, etc. The weighted strainers are great for the suction lines, but you'll want to secure the line back into the sump as it will jump around. (it's not a constant linear flow, it pulses).
Hope that helps, maybe it's just the newness but am in pretty big amazement at how easy this is going to make my water changes. Very excited still.
