For aquariums up to 400 gallonsFor in sump use24" tallIncludes the Aqua Medic Oceanrunner 3500 pumpThe feed pump is not included. You can either use an approx. 500 gph pump, such as the Rio 8HF HyperFlow Pump, as the feed pump or hook up the Turboflotor directly to the overflow box.User Manual (pdf file in new window)