Tetra IN plus Filters are Easy to use Internal filters for keeping your aquarium water healthy. Some key benefits of the IN400+ filter are; - Filter start button makes starting filter easy - Snap valve shuts off water flow for no-mess access to media - Robust design - Comes complete with media and pipework - Easy maintenance - no need to remove the entire filter as all components can be quickly and easily removed in-situ - CE certified TUV/GS tested - safety and reliability assured - Adjustable flow-rate - Filter sponge split into two segments - one can be replaced whilst other maintains population of beneficial bacteria - Outlet nozzle can be rotated 180degrees for flexible flow direction - Activated carbon sponge also available for cleaner clearer water - 2 year guarantee Suitable for Aquariums 30 - 60L Performance 200-400l/h 7watt Power consumption 1 Double filter chamber. Simply attach your IN plus filter to the side of the aquarium using the suckers provided ensuring that it is submerged. The flow rates can be adjusted with the flow-control dial and the flow can be redirected with the rotating outlet. To clean the sponge simply wash it in a bowl of aquarium water but NOT under the tap. Tap water will kill the friendly filter bacteria. Wash or replace one sponge at a time. Always read the instructions carefully before use.