The 50 Watt EKIP Thermopump Heater comes complete with its own 90 gph pump--providing both heat and water circulation in one space saving device.7" tall, 1.75" wide, 2" deepPerfect running whether in vertical or horizontal positionNo danger of damage if the equipment is left running outside the aquarium for a short period of time. By using the new PTC system, the Thermopump will switch itself off, before overheatingPatented heating element made with the exclusive PTC system. The traditional metal resistor coils have been replaced with a special polymer sheet, silk-screened with heating inkThe self-ventilation system allows a constant cooling of the motor unit. Self-cleaning rotor assembly reduces maintenance and aids in providing a steady, constant water flowThe temperature probe placed in the inlet tube, ensures accurate temperature controlThe equipment has one electric cable and one plugSetting of temperature controlled by an electronic circuit with indicator lightAdjustable aeration device, flow outlet & flow control Temperature range: 70-94 degrees Fahrenheit