Sponge filters provide both mechanical and biological filtration
Easy to set up & clean: simply install an airline into the unit and turn on the air pump, simply rinse and squeeze sponge in tank water
Using an air hose, connect one end to you air pump and the other end to this filter, and equipped with a check valve on air hose, to prevent water backflow and air pump damage due to power outage. It is a great way to clean and oxygenate your fish tanks.
Recommend tank size: 10 Gallon
Includes: 4 Pcs of sponge filter, 4 check valves,4 control valves, 4 suction cups
