Submersible 25W

Marina Submersible 25W is a highly compact, fully submersible glass heater designed specifically for small freshwater or marine aquariums up to 20 liters. Constructed from shock-resistant glass, it features an easy-to-use temperature dial for precise adjustment. A built-in red LED indicator light provides clear visual feedback, showing exactly when the heating element is active.

Key Features

• Engineered for Nano Aquariums: 25W output optimized for nano tanks, Betta bowls, and small desktop displays.
• Precise Temperature Dial: Simple rotating thermostat dial with a readable scale for effortless adjustments.
• Active Pilot Light: Red indicator light glows when heating and turns off once target temperature is reached.
• 100% Waterproof Seal: Double insulated seals allow for safe vertical or horizontal placement inside the tank.