Fluval is a world leader in quality aquatic products, for over 30 years, it has earned the trust of fish-hobbyists by making innovative products that deliver many valuable benefits and has earned a global reputation for excellence in product innovation and dependability. The Fluval M Series Premium Aquarium Heaters are quality manufactured in Europe using superior components and construction. Sleek and compact, the submersible heater provides exceptional performance and unsurpassed reliability. The heater also includes an exclusive mirror technology that reflects the colours of the aquarium and enhances overall aesthetics. Key Features include: A.