The Aquatop 250W Titanium Heater with Anti-Overwind Knob is a reliable and efficient heating solution for aquariums up to 65 gallons. Made from durable, corrosion-resistant titanium, this heater is designed to withstand fresh and saltwater environments, ensuring long-lasting performance. The adjustable temperature feature allows you to set the ideal conditions for your aquatic life, maintaining a stable and healthy environment. The anti-overwind knob provides precise and safe adjustments, preventing any risk of overheating or incorrect settings. With a compact height of 12.5 inches, this heater is versatile and easy to install in a variety of tank setups, offering flexibility for different aquarium configurations. Simple to install and maintain, the heater's design ensures hassle-free operation, making it a perfect choice for both beginners and experienced aquarists. The 250W power ensures efficient heating, keeping your tank's temperature consistent for optimal aquatic health.