Features:

1. New patented structure with on-return valve ensures that no water flow back when power off.  After power supply is on, water will circulate quickly without pump racing.
2. High quality silent design is adopted to prevent the pump from  making noise when operating.
3. Two-stage filtering cartridges enhance filtration efficiency and quality.  Extend filtering area to 2-3 times wider.
4. Bio-sponge is attached to water inlet to prevent baby fish from being sucked into the hang-on filter.
5. Suitable for both freshwater and saltwater.