The Fluval E Heaters continuously monitor and display aquarium water temperature, ensuring the well-being of your aquarium inhabitants. The E Series features VueTech technology. With the easy to use adjustment lever, the temperature can be precisely set in 0.5° increments. Its LCD display delivers peace of mind by continuously showing real time water temperatures. During normal operation, the temperature readout will change color if the water varies +/-2 degrees F or more from the pre-set temperature. If any external heat sources or other equipment, such as chillers, cause the aquarium water temperature to rise or fall beyond 5.5 °F, the colored screen will flash, indicating a potential risk. The ability to measure temperature in Celsius is also an option. The integrated fish guard offers advanced protection. Fish and invertebrates cannot come into direct contact with the heater core. The glass sleeve is also protected against shocks from large fish species. Built with a secure slim profile mounting bracket, it can be adjusted or removed without removing the mounting bracket. For those with a marine aquarium and sump, you can also attach the Fluval E heater there. WARNING: The heater must never be operated outside of the aquarium. If the water level falls below the minimum water level MIN, the thermostat can no longer "read” the water temperature and therefore can no longer control the heating correctly. If it has to be taken out of the water or when transferring or changing the water, disconnect the heater from the power source and wait for at least 30 minutes to allow it to cool down. For more fish tank accessories, check out other Fluval products including aquarium filters, aquarium heaters, aquarium air pumps, aquarium lights, aquarium rocks, aquarium thermometers, and aquarium stands. Fluval has a wide variety of products that are perfect for your pet fish to enjoy in any large fish tank, small fish tank, saltwater tank or freshwater tank.

Equipped with a slim profile mounting bracket and colored display alert system. Fast heat technology built with a safety shut-off and integrated fish guard to protect fish and invertebrates. LCD temperature display available in both Fahrenheit and Celsius; with a range of 68 to 93 degrees Fahrenheit. Aquarium heater with dual temperature sensors provide accurate and real-time water temperatures.

Light Source Type: LED. Product Dimensions: 1.8"D x 3.3"W x 18.2"H. Color: Blue. Brand: Fluval. Style: E300. Date First Available: June 24, 2004. Best Sellers Rank: #7,018 in Pet Supplies. Customer Reviews: 4.5 out of 5 stars 2,827 ratings 4.5 out of 5 stars. : B001VMSK0I. Warranty Description: ?5 years; fluval e series heaters are guaranteed against defects in material or workmanship under normal aquarium usage and service for 5 years. We offer a 5 year guarantee on all nonreplaceable parts which means that the heater will be repaired or replaced at the manufacturer's discretion, free of charge, when the complete heater is returned with proof of purchase and postage paid. This warranty does not apply to any heater that has been subjected to misuse, negligence, or tampering. No liability is assumed with respect to loss or damage to livestock or personal property irrespective of the cause thereof. Batteries Required?: ?No. Batteries Included?: ?No. Usage: ?Indoor. Item Package Quantity: ?1. Voltage: ?230 Volts. Size: ?E300. Is Discontinued By Manufacturer: ?No. Item model number: ?A774. Country of Origin: ?Italy. Product Dimensions: ?3.3 x 1.8 x 18.2 inches. Item Weight: ?13.1 ounces. Part Number: ?A774. Manufacturer: ?Rolf C. Hagen. Number of Items: ?1. Wattage: ?300 watts. Mounting Type: ?Slim mounting bracket. Age Range (Description): ?All. Included Components: ?Fluval Advance Electronic Aquarium Heater. Switch Style: ?Push Button. Power Source: ?Corded Electric. Recommended Uses For Product: ?For use in freshwater and saltwater aquariums. Shade Material: ?Glass. Material: ?Plastic. Light Source Type: ?LED. Product Dimensions: ?1.8"D x 3.3"W x 18.2"H. Color: ?Blue. Brand: ?Fluval. Style: ?E300.