- Compact, shatterproof aquarium heater with PTC (Positive Thermal Coefficient) technology.
- Automatic overheating control system.
- Temperature controlled by a high-precision micro switch.
- Works in both horizontal and vertical positions.
- Can also function if buried under aquarium gravel.
- Choice of 2 sizes: 12in - 150w, 15.5in- 300w.
- Size:15.5in (300w)