The RESUN EF2800 Xtreme Canister Filter is a highly reliable and powerful filtering pump of great performance, low power consumption and low noise. Mechanical, chemical and biological filtration process for maximizing water purification while reproducing beneficial nitrobacteria. Quick-start button. Compact, simple installation, and water leak-proof structure. Removable inlet/outlet combo makes cleaning convenient. High quality ceramic shaft suitable for both fresh and marine water aquarium.