"Surface skimmer for aquarium filters
• Automatically cleans the surface of the water, increasing the oxygen content in freshwater and saltwater.
• Attaches easily to suction hose of external filter (fits 9/12 or 16/22 hoses).
• Infinitely variable ratio of surface water to deeper water (adjustment spindle easily accessible from above).
• Can be adapted to fit aquariums of over 35 cm high.
• Unobtrusive design allows the surface skimmer to “disappear” in the aquarium.
• Suction section floats, automatically adapting to the water level.