200W heaters for 20~30 Gallon (75-113L) fish tanks

✓ Quartz glass material is shatterproof and acidproof, making it suitable for prolonged use in marine water and fresh water.

✓ Built-in thermostat to automatically control the water temperature at the desired value

✓ Temperature difference within ±1℃/±2ºF

✓ 20℃-35℃（68℉-94℉） adjustable heating temperature

✓ Over-temperature protection

✓ ℃/℉ Selection

✔ Double-row bracket with 4 suction cups for a more stable installation

✔ Soft silicone protective covers at both ends, no harm to your pet fish