The Prodigy by ESHOPPS is a new addition to the Color Series that combines Innovation and Creativity at its core. It was created for advanced aquarists with efficiency and beauty in mind. The Prodigy is the slimmest overflow ever created, elegantly built rear external box that notably saves space within the tank. It includes everything you need for an easy “plug and play” installation. Features -Worlds Slimmest Overflow box -Adjustable Water Height Weir -Recessed External Overflow Cover Specifications - Item#: 95857 - Dimensions: Internal: 8"x5/8"x6" External: 8"x3.5"x6" - Flow Rate: Up to 700 GPH - Glass Thickness: Up to 5/8" - Tank Size: 20-70g