The Pondmaster Magnetic-Drive utility pump is a magnetically-driven, submersible pump. This unique energy-efficient design uses only one moving part (a ceramic/magnetic impeller). Only one moving part means that there aren’t any seals to wear out.
The Pondmaster Magnetic-Drive Pump series was specifically designed as a circulating pump for fresh and saltwater aquariums and ponds

Fully submersible pump creates powerful currents for increased circulation in your fresh or saltwater tank. Enhances water flow through undergravel filters and protein skimmers. Maintenance-free, energy-efficient motor.

Zoo Med’s Power Sweep powerheads are the first and only rotating powerheads on the market. With a full 60 degree of rotation the Power Sweep replicates natural water currents without the expense of a wave maker. The Power Sweep is fully submersible and can be used alone or in conjunction with an under gravel filter system.

Maxi-Jet®PH pump and power head is ideal for powering undergravel filters or creating internal water movement from its fully rotational output. The Maxi-Jet®PH incorporates a venturi aeration device to provide optimal aeration and gas exchange in the aquarium…

The Koralia Nano features 1-3/4″ diameter suction cup and magnet mounting system, also suitable for up to 1/2″ thick glass nano reef aquariums.
Unique patented magnet + suction cup support included! Incredible stability in any position. Magnet is specially covered to prevent corrosion.
High performance, low energy consumption! Unique patented impellers designed by hydor guarantee exceptional hydraulic performance with low energy consumption.