• Designed for aquariums up to 100 US Gal / 400 L• Square-shaped canister design holds 35-50% more water than round canisters of similar size • Improved motor performance – reduces maintenance frequency, increases flow rates and head pressure • Sound-dampening impeller offers 8-15% quieter operation than previous generation • Patented Aqua-Stop valves for easy hose disconnections • Redesigned impeller cover for added durability • Re-engineered priming system for easier start-up • Filter media included – mechanical, chemical and biological • Complex cleansing path maximizes water contact time with filtration media • Multiple removable media baskets • Strong, single-motion lift-lock clamps offer a more secure closure and easier filter access • Hose lock nuts for added security • For use in freshwater and saltwater aquariums