This product can be found in: Aquarium Heaters   UK Standard Delivery FREE on orders over £39* This item is deliverable to most EU Countries From £7.99   Eheim Aquarium Thermostat Heater 50 3612110 54513 0 reviews | Login to review RRP: £19.18, Our Price: £15.99 Order Today to Save 17% off RRP The Eheim Aquarium Thermostat Heater 50 is suitable for aquariums of size 25-60l. It is a simple rod design that simply hangs in the water and heats it. Although it looks like its predecessors it is an ultra-modern electronic thermal device that uses the best technology. Its new jacket of laboratory glass offers real advantages over the competition. It was developed for research purposes and is such free from pollutants that could be released in water. It is resistant to chemical and biological substances. It does not have any fissures or hair cracks through which water could penetrate and even fluctuations of temperature that can occur when the water is changed do not bother the glass. Other advantages include The temperature can be precisely adjusted from 18 to 34 degrees and recalibrated if required. The control accuracy is 0.5 degrees. The heat is kept at a constant level. The heating function is indicated by a control lamp. The unit can be fully immersed, is protected against dry running and it suitable for fresh or marine water. The glass jacket enlarges the heating surface and ensures optimum even heat emission. 50W 243x36mm Click here for product information. Requires Adobe Reader. Discontinued Unfortunately, this item has been discontinued.