Easy-to-install wet/dry filter for fresh or saltwater aquariums. Large bio-ball capacity increases aquarium biological filtration. Includes Eshopps overflow box for convenient filter installation Eshopps Compact wet-dry filters fit comfortably in cabinets without sacrificing functional space. Smart easy-access sump allows convenient installation of return pump. Wet-dry trickle filter provides efficient biological filtration to process toxic ammonia and nitrite. Includes overflow box bio balls drip tray and cover egg crate filter pad return nozzle with vinyl tubing 1 bulkhead and 3 ft. x 1-1/4 flex hose.30 x 12 x 16 H Dual Intake1000 gph 150-200 gallon tank.