ALEGI 4pcs Large Aquarium Sponge Filter with Suction Cups, Check Valves for Breeding Fry Betta Shrimp Fish Tank (X-Large for 40-80 Gal 4 Pcs)

Sponge filter present each mechanical and organic filtration
Straightforward prime arrange & clear: merely set up an airline into the unit and activate the air pump, merely rinse and squeeze sponge in tank water
Utilizing an air hose, join one finish to you air pump and the opposite finish to this filter,and geared up with a examine valve on air hose, to stop water backflow and air pump harm as a result of energy outage. It’s a good way to wash and oxygenate your fish tanks.
Suggest tank measurement: 40-80 Gallon every Sponge filter
Contains: 4 Pcs of sponge filter, 4 Non-rutrun examine valves,4 contral valves, 4 suction cups, 25 ft air tubing