The Top Fin Power Filter 75 is the perfect filter for larger aquariums and those interested in maintaining the beauty and cleanliness of their aquatic environment. This powerful filter silently pumps up to 250 gallons per hour, employing 4 stages of filtration in order to remove unwanted particles, odors and more. Only at PetSmart. Features: Self Priming Cartridge Change Indicator, 4-Stage Filtration, Silently pumps 350 gallons per hour Includes: 1 Power Filter 75 1 Filter Cartridge 1 No-Clog Biological Plate 1 Intake Tube Intended For: Aquariums up to 75 gallons Color: Black Size: 12.7 in L x 5.3 in W x 21.1 in H (32.2cm x 13.4cm x 53.5cm) Instructions: If water is flowing out of the overflow area, it is time to change the filter cartridge. To help maintain a healthy aquarium, change the filter cartridge every 3-4 weeks. Remove the cartridge when medicating the water as carbon will absorb medications. Change out 10% of the water weekly or 25% monthly. Use a water conditioner every time you add fresh tap water to your aquarium. Be sure your bucket is only used for aquarium water. Never use soap, detergents, or cleaning agents while cleaning the aquarium or equipment as they can harm your fish. Caution: This is not a toy. Contains small parts. Keep out of reach of children. Size: 75 gal.