This is a complete ATO kit for freshwater aquariums.  The kit includes a 5 Gallon Water Reservoir, a pump, a controller and both water sensors.  The reservoir has no cracks or leaks.  Two of the glass sides are painted black to retard algae formation.  The mounting bracket for the pump has a crack which was repaired with epoxy, and has no issues securing to the reservoir.  Pump tubing is not included but is easy to source at home improvement stores.