The AquaClear Powerhead 70 is a multifunctional pump that delivers outstanding performance in a variety of applications. It can efficiently drive under-gravel filters, circulate and aerate aquarium water, and attach to filtration accessories such as the AquaClear Quick Filter to support crystal clear water conditions. The Powerhead 70 can be used to raise oxygen levels, which is important when there are increases in water temperature or fish population, as well as during the treatment of diseases. It can also be connected to drive protein skimmers, which are essential devices for most marine aquariums. The Powerhead is indispensable in smaller reef aquariums where it can be easily hidden and still provide highly beneficial currents. Freshwater aquariums also benefit from additional currents in many applications. In addition to being the ultimate submersible pump in its category, the Powerhead also includes the following design, safety and utility innovations: a compact, energy-efficient, and completely submersible motor unit that is insulated in epoxy resin to protect against harsh fresh and salt water environments; adjustable flow control; convenient suction cups for easy installation; and an output hose adapter that allows easy attachments to protein skimmers, spray bars, and other accessories. Using a Powerhead in combination with an AquaClear Quick Filter provides additional safe mechanical filtration for cleaner water conditions and the protection of baby fish.