Undisputedly the most reliable and efficient aquarium heater in the world!tremely accurate, this high-quality heater features an easy to adjust control dial is adjustable from 65-93̻° Fahrenheit. Contains a heavy-duty 2mm thick, shock-resistant Pyrex glass construction. Six foot double insulated power cord and suction-cup attachment included. Perfect for fresh or saltwater use. Manufacturer provides a three-year warranty. Made in Germany. Features: Dry-running protection Fully submersible Submersible to specified water line. Inner and outer seals insure the water-tight integrity of the inner mechanism. Temperature recalibration Precise temperature control Precision bi-stable thermostat +/- .5̻° F holding temperature. Heating function is indicated by an on/off control lamp Special Schott DURAN shatterproof glass Chrome nickel Helical heating coil designed for maximum strength and even heat distribution resulting in no hotspots. Dimension: 400mm x 24.5mm Suitable for tanks between 300-400L
