The Aquatic Lifestyles pump vault comes in two sizes and makes it easy to access the pump for cleaning or servicing. The sunken foot means that the pump can suck right to the bottom of the reservoir. They can be used for pondless reservoirs or rainwater harvesting. The large vault suits large Aquascape AquaBlox and the small vault suits the small AquaBlox. The large vault can also be used when constructing an intake bay.