(OPEN BOX) Fiji Cube Low Profile External Overflow Box 600GPHOur open box products are new products with signs of blemishes and scratches. Some open box products may not come with the original packaging boxes. All open box products are inspected and fully functional. The external overflow box is a popular overflow option for hobbyist to build their tanks into the next level. Fiji Cubes external overflow box features a slim and safe design that offers another solution to perform your tank build. Features: Slim