The Reef Octopus Octo Classic CLSC-202SS is an in-sump protein skimmer designed to deliver powerful and efficient filtration for saltwater aquariums. It effectively removes organic waste and dissolved impurities, maintaining pristine water quality for tanks up to 265 gallons. This essential piece of equipment helps create a healthy and stable environment for delicate reef inhabitants by preventing nutrient buildup. Constructed from high-quality cast acrylic, this skimmer features a unique Super Cone "wine glass shape" body that naturally enhances foam production and concentration. It is equipped with an ultra-efficient Reef Octopus Aquatrance 3000s pinwheel pump, drawing 871-880 liters per hour of air, ensuring an optimal air-to-water mixture. Its compact footprint of 12.4 inches by 10 inches and a total height of 23.2 inches make it suitable for sumps with limited space, while a bubble dispersant plate and precision control ensure quiet, bubble-free output. The Reef Octopus Octo Classic CLSC-202SS is ideal for reef aquarists seeking refined filtration at an affordable cost, particularly those with aquariums up to 265 gallons and space constraints within their sump. Its solid construction and complete disassembly feature allow for easy cleaning and maintenance, ensuring long-term performance and reliability. With its efficient and quiet operation, this skimmer provides a robust solution for maintaining excellent water parameters without disrupting your home environment.