100W Submersible Water Heater with Precise Temperature Control

Durable titanium shell ensures corrosion resistance and long-term underwater performance. The shatterproof quartz glass tube provides even heat distribution while preventing cracks under rapid temperature changes.

Built-in adjustable thermostat maintains water temperature within ±0.5℃ accuracy, ideal for tropical fish and sensitive marine species. The fully submersible design allows horizontal or vertical installation in aquariums from 20 to 50 gallons.

Energy-efficient PTC ceramic heating element consumes 15% less electricity than conventional heaters. Auto-shutoff feature activates when water level drops below safe operational range.

Perfect for freshwater/shrimp tanks, turtle habitats, and saltwater reef systems. Waterproof LED indicator displays real-time heating status. Compact size (10.2") fits most sumps and nano tanks.

Includes suction cups with anti-slip grooves for secure placement. CE/RoHS certified with 2-year warranty. Bulk pricing available for aquarium stores and commercial breeders.