Description
Upgrade your aquarium’s heating system with the robust and space-saving Finnex THD-300S Compact Titanium Heating Element. Engineered for durability and efficiency, this 300-watt heating tube is built from corrosion-resistant titanium, making it virtually unbreakable and the perfect alternative to fragile glass heaters.
Designed with a slim 0.62" profile, the THD-300S fits easily into tight sumps, AIO (All-In-One) back chambers, and crowded filtration compartments where standard heaters won’t go. Whether you run a saltwater reef or a freshwater planted tank, the THD-300S delivers steady, consistent heat transfer to keep your aquatic livestock thriving.
⚠️ Important: This is a heating element only. A separate temperature controller (sold separately) is required for operation.
Key Features
- Virtually Unbreakable: Constructed from premium titanium, this heater is shatterproof and immune to the corrosion often caused by saltwater environments.
- Ultra-Compact Design: Features a slim 0.62" diameter, allowing for versatile placement in smaller water volumes or tight filtration compartments.
- Superior Heat Transfer: Titanium transfers heat more efficiently than glass, ensuring your tank reaches the desired temperature quickly and maintains it with less energy waste.
- Protective Heater Guard: Includes a high-temperature safety guard to prevent fish, snails, and other livestock from coming into direct contact with the heating element.
- Universal Compatibility: Works seamlessly with most 3-prong aquarium temperature controllers (e.g., Finnex, Inkbird, Ranco).
Detailed Description
Built to Last Say goodbye to the fear of cracked glass heaters and stray voltage. The Finnex THD Series uses a titanium body that is tough enough to withstand accidental bumps during maintenance and the harsh conditions of marine aquariums. Inside, an industry-standard quartz sleeve ensures steady and safe heat distribution.
Safety First Every THD-300S comes pre-installed with a protective heater guard. This barrier is essential for the safety of your tank’s inhabitants, preventing burns to curious fish or invertebrates while maintaining optimal water flow around the element for accurate heating.
Precision Heating When paired with a quality controller, the THD-300S provides precise temperature management for tanks ranging from 40 to 80 gallons. Its fast response time helps eliminate temperature swings that can stress sensitive corals and tropical fish.
Technical Specifications
- Model: THD-300S
- Wattage: 300 Watts
- Recommended Tank Size: 40 – 80 Gallons
- Voltage: 120V
- Amps: 2.7 A
- Tube Diameter: 0.62 inches (Slim Profile)
- Approx. Length: ~11–12.5 inches
- Material: Titanium & Quartz
- Application: Freshwater & Saltwater
What’s In The Box
- 1x Finnex THD-300S Titanium Heating Tube
- 1x Protective Heater Guard
- Suction Cups for mounting
Please Note: This unit does not have a built-in thermostat. It must be plugged into a heating controller to function safely. Do not plug directly into a wall outlet.
