The Reef Octopus Regal SpaceSaver DC Skimmer 200 SSS is an advanced in-sump protein skimmer designed to provide powerful and efficient filtration for saltwater aquariums up to 400 gallons. This innovative unit is specifically engineered for setups where sump space is at a premium, effectively removing organic waste compounds from your aquarium water to maintain pristine water quality and a healthy reef environment. Its robust design ensures reliable performance for demanding reef systems. Constructed from high-quality cast acrylic, the Regal 200 SSS features a hybrid conical body that naturally stabilizes and concentrates the organic-rich foam for optimal skimming. It is equipped with the new generation Reef Octopus VarioS 4S controllable Direct Current (DC) pinwheel skimmer pump, offering refined control over air and water flow rates through variable speed technology. This allows users to electronically adjust the skimmer's processing capacity with the push of a button, enhancing performance and energy efficiency. The skimmer's body disassembles completely for convenient and thorough cleaning. Key specifications include an 8-inch body, an 11.6-inch by 9.7-inch footprint, a total height of 23.6 inches, and a power consumption range of 25-40 watts, drawing 800-1500 lph of air. This protein skimmer is an ideal choice for serious reef hobbyists managing aquariums up to 400 gallons who face limitations in sump dimensions but refuse to compromise on filtration quality. Its precise control capabilities appeal to those seeking to fine-tune their skimming performance for specific tank needs or varying bioloads, while the DC pump technology provides significant advantages in efficiency and quiet operation over traditional AC pumps. Furthermore, its easy disassembly makes maintenance a straightforward task, ensuring long-term optimal function and a hassle-free user experience.