The Prodigy by Eshopps was created for advanced aquarists with efficiency and beauty in mind. There’s no bigger eyesore in a beautifully aquascaped reef tank than a giant overflow box in the middle of your view. Overflows are a critical component of modern sump filtration, but they’re often not very discreet. Most overflow boxes stick out like a sore thumb, breaking up the panoramic view and interfering with rockwork placement. The Prodigy overflows aim to minimize that issue, offering the slimmest profile and lowest visual impact of any internal overflow on the market. Features World’s Slimmest Overflow box Adjustable Water Height Weir Recessed External Overflow Cover Specifications Internal Box Dimensions: 12”L x ⅝”W x 6”H External Box Dimensions: 12”L x 3”W x 6”H Max Flow Rate: 900 GPH Glass Thickness: ⅝” What's Included? 1x Black internal box w/weir 2x 1.5" bulkheads 1x Clear acrylic external Box 3x 1” bulkhead 4x gaskets 1x Clear Lid 1x Red PVC safety tube 1x Drill Bit for glass 1x Template Warranty and instruction pack