Fluval M50 Premium Aquarium Heater is 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 : Quality heater made in Europe using superior components and construction Sleek and compact Submersible heater provides exceptional performance and unsurpassed reliability Also includes an exclusive mirror technology that reflects the colours of the aquarium, enhances overall aesthetics Ideal for 50 L (15 US gal) aquariums For fresh and saltwater tanks Other models available : A782 Fluval M100 Premium Aquarium Heater, 100 watts, for aquariums up to 100 L (30 US gal) A783 Fluval M150 Premium Aquarium Heater, 150 watts, for aquariums up to 150 L (45 US gal) A784 Fluval M200 Premium Aquarium Heater, 200 watts, for aquariums up to 200 L (65 US gal) A787 Fluval M300 Premium Aquarium Heater, 300 watts, for aquariums up to 300 L (80 US),