125 GPH, For fresh or saltwater aquariums up to 30 gallons. Keeps water crystal clear with an enhanced five-stage filtration process including; mechanical, chemical (carbon), biological, stationary wet/dry, and specialty media (ammonia / phosphate). UL listed for safety. - Auto self-priming start pump eliminates messy spills-even if the power goes out - For fresh or saltwater aquariums - Includes one free filter cartridge and one free specialty media insert - LED cartridge change indicator that is specific to your unique aquarium needs Condition : used , “Please note that the filter is used and not brand new