Small yet powerful, the mini 25-watt/50-watt Marina Submersible Aquarium Heater provides reliable heating for fresh or saltwater aquariums up to 20 litres (5.5 US gal) / 38 litres (10 US gal) aquariums.
The heater includes many practical features for easy use, safety and convenience, including an easy-to-access temperature set dial, on/off pilot light indicator, and a bumper guard for fish safety. Made of durable high-impact glass, its built to last under normal aquatic conditions.