This is for an Aqua Clear aquarium filter. This is for a 100 gallon plus (or 378 liters) tank. It pumps 500 gallons or 1900 liters per hour. It could be used in a tank as small as 50 gallons. It is in near new lightly used condition. It measures 13.5 inches by 9 inches by 6.5 inches. Instruction book included. These are very quiet running filters. I have had one a used one running in my tank well over 5 years continuously with no issues. I just checked with the pet store and this new is $202. Filter media not included. Available in most pet stores. Price $100 ***One pictured is SOLD** I have another used one of these used good condition . Price $80 ****If you see this ad and it is NOT marked as sold IT IS AVAILABLE so phone rather than email and waste both our times. 250-656-0549 No Fri evening or Saturday calls. I have many aquariums and all kinds of equipment and supplies. See other ads by "rapsent" Large selection of small appliances for Sale or rent.