Description
Under gravel filters work by the bubbles from the aquarium airpump pushing water up the uplift tube or a powerhead pulling water up forcing water through the gravel to replace it so filtering the aquarium water. Will fit a aquarium up to 12 inches long and 8 inches wide. Airpump required (not supplied). Easy setup and maintenance make this under gravel filter a must have for any fish tank or aquariums. Simply place filter plates at the bottom of the fish tank and cover with gravel. 11 Inch by 7
