The sleek and compact Reef Octopus Classic 110SSS in-sump protein skimmer supplies powerful filtration for aquarium systems up to 130 gallons and easily fits in most space limited installations. The Reef Octopus Classic 110SSS is constructed of high-quality acrylic that can be completely disassembled for cleaning. Equipped with the new Aquatrance pinwheel pump, it produces an ideal mix of water and air for optimum waste removal. A simple vented wedge valve output provides precision control and allows cleaned water to exit the skimmer below water for quiet operation.