Undergravel Filter Kit Aquarium Fish Tank Under Gravel Tray - Multiple Sizes (28 Piece)

Undergravel filter trays are a proven efficient biological and mechanical filter. These interconnecting pieces are ideal for covering all sizes of aquariums. Multiple sets can be used and interlinked for larger aquariums. Our undergravel filters are available in 3 sizes – 24 Piece, 28 Piece and 32 Piece. Please select the required size from the drop down menu when ordering. Please see detailed specification for each model below. The uplift tube supplied with each model is adjustable in height between 32cm and 51cm height. The gaps in this filter are 2mm, therefore, these filters will only work well with gravel larger than 2mm. These cannot be used with a sand substrate. Please note – a suitable air pump or water pump is required to run the undergravel filter (not supplied).