Finnex TH Series Titanium Heating Tube

The Finnex TH Series Titanium Aquarium Heaters deliver exceptional durability and precision for a stable, safe aquatic environment. The TH features a thicker, larger titanium heating tube than industry standards, housing extended quartz glass sleeves and coils that surpass normal lengths. This design enhances heat distribution, reduces cycling stress, and significantly increases longevity—ensuring premium performance and reliability for serious aquarists.

The Titanium Advantage

Titanium is trusted by experienced aquarists for its unique combination of strength, corrosion resistance, and thermal efficiency. Unlike glass, titanium won’t shatter, making it safer in tanks with active fish or large species. Its superior heat transfer allows for fast, even heating without hotspots — critical for sensitive reef tanks and delicate freshwater species.

• Marine & Freshwater Safe: Naturally corrosion-proof, titanium thrives in saltwater setups where other metals fail.
• Efficient Performance: Fast response means stable tank temps, less energy waste, and healthier fish and corals.
• Built to Last: With no fragile glass casing, titanium heaters endure heavy use and bumps without cracks or leaks.

* While the THD-300S titanium tube is longer than the TH-300S, the TH-300S — like the entire TH Series — features extended quartz glass sleeves and coils within for premium longevity and superior heat distribution, making it the premium choice.