Finnex THD-300S 500W THD Titanium Heater Element

Product details

Finnex THD-300S 500W THD Titanium Heater Element is a submersible aquarium titanium heater designed to provide reliable, consistent heating for freshwater and marine setups. Using a durable titanium tube and an internal quartz sleeve, it helps maintain stable water temperature—important for livestock that are sensitive to temperature swings. The heater is placed inside the aquarium and works by warming the surrounding water as it circulates around the element, making it a practical choice for day-to-day temperature control.

Features:

• Titanium heater element helps resist corrosion compared with glass heaters
• Internal quartz sleeve is designed to support steady, consistent heat output
• High-temperature protective heater guard helps reduce accidental contact with the hot tube surface
• Heater guard allows water flow around the heating element for more stable temperature control
• Streamlined, compact design helps it fit neatly in most aquariums
• Built for dependable aquarium heating as part of the Finnex THD heater line

Specifications:

• Model: THD-500S (THD Series)
• Power: 500W
• Voltage: 120V
• Current: 4.5A
• Element Diameter: 0.62 in
• Element Length: 11.02 in
• Recommended Aquarium Capacity: 70–125 Gal