pump is included as for spec please refer to aquacave thats where it was originally bought from. i keep my level at 9" but the flow is controllable. and its a in-sump skimmer.
another bump for one of the best skimmer's i've owned. best for a heavy 120 to stocked 150, owned this skimmer twice, for my 80g heavy stocked and was just too much skimmer.