The JBL Protemp E300 External Heater revolutionizes aquarium heating by integrating seamlessly into your external filter's hose, providing precise temperature control without cluttering your tank.

• Effortless Installation: Simply cut the hose of your external filter, insert the heater, plug it in, and set your desired temperature for hassle-free operation.
• Consistent Temperature Control: Enjoy optimal water temperature with an accuracy of +/- 0.5 °C, ensuring a stable environment for your aquatic life.
• Versatile Compatibility: Comes with interchangeable screw-on hose connections suitable for various hose sizes (12/16, 16/22, 19/25 mm), making it adaptable to different setups.

Why buy this product? Experience the convenience of an external heater that simplifies your aquarium maintenance while delivering precise heating performance, ensuring the health and happiness of your aquatic inhabitants.