The undergravel filter is a biological aquarium filter and makes your gravel act as your filtration medium.
Keep your aquarium water crystal clear with an undergravel filter system. Two plate filter system.Durable, plastic construction.
Power with air pump or power head. Jumbo 1″ adjustable lift tubes are compatible with most power heads.
Lift tubes: 2 nos 32 cm in height
1 plate dimensions
14 cm length and 7 cm height