The larger version of the power gravel cleaner range the 2000 is suitable for aquariums upto 500 litres and is suitable for tanks upto 44 deepr the easy way to clean gravel without removing water from the aquarium the powerful 650 lph pump pushes dirty water through the filter sock to clean and remove debrisr the power gravel cleaner is a hang on aquarium gravel cleaner with efficient filter cartridge to trap the smallest particlesr the cleaner is powered by a powerful mains powered pumpg