Aqua One PHX Powerheads provide circulation and aeration in freshwater or marine aquariums. The PHX Powerheads are fully submersible and will support your aquarium with an improved oxygen-rich environment. Features & Benefits: Adjustable flow dial allows you to create the ideal current for your fish/li> Effectively keeps water circulating throughout the aquarium/li> Energy efficient Quiet operation Fully submersible Adhesive suction cups to secure your powerhead to the inside of your aquarium Available in 4 sizes
