The EHEIM professionel 5e External Filter is a premium-grade canister filter engineered for both freshwater and marine aquariums. It features wireless control via integrated Wi-Fi, allowing programming of modes such as constant flow, bio-mode and pulse mode. The electronic system monitors performance including air build-up and maintenance intervals, and extends the life of biological media with a large canister and advanced pump design. With a “Made in Germany” build, ceramic bearings for quiet durability and compatibility with aquariums up to ~700 L (depending on model version), this unit is ideal for serious hobbyists seeking top-tier filtration.