Acrylic sump 32/5" W, 18.75" D by 30" H. Takes 2 filter socks (32") and has partitions to force water through bio-media. All 1/2" acrylic with completely open top so can easily be cut down in height. I have 2 identical ones. One was on a 275G and the other on 450G. Lots of 32" filter socks from 50 micron to 400 micron (all nylon mesh absolute single layer for easy rinsing with just a hose) for $3 each. They are about 3 years old. I also have Matala sheets (gray, blue and green) or ceramic beads if you need bio for them at an extra charge. You can run up to 6000 GPH through these sumps (I ran about 3000 GPH).
