Fluval Aquarium Canister Pro Kit Pro kit includes 106 filter, 2lbs of premium filter carbon, 2lbs of ceramic bio rings, 80pcs bio balls and 4pcs foam block Suitable for aquariums up to 25 gallons Equipped with a clog-proof intake strainer and a dual layer foam screen Sound dampening impeller design for a quieter operation Authorized Fluval dealer means full 3 year manufacturer warranty