Eshopps PF-300 Overflow Box - Up to 75 gallons - 6 in. x 3 in. x 10 in.
Advanced U-tube style compact overflow boxes are designed to fit between your tank and your wall to maximize space usage in your aquarium setup. With only 3 in. required between your tank and your wall, these boxes are excellent for optimizing space.  Each box includes everything required to attach it to your system and comes with a foam prefilter. It's always a good idea to achieve greater volume in your aquarium; do it the easy way with one of these overflow boxes. Each unit includes a U-tube tube, cylinder foam, nylon screw  wing nuts, black pre-filter box  1 in. bulkhead.  Click here for directions on how to  install your overflow system .