The Marina Submersible Pre‑Set Heater 300W delivers reliable, consistent heating for freshwater and marine aquariums up to around 300 litres (80 US gallons). Fully submersible and constructed from impact‑resistant glass, this heater is engineered for safety and durability. It features an easy‑access temperature set dial, a clear on/off pilot light, and a protective bumper guard to safeguard fish from direct contact.

Designed for simplicity and convenience, the heater includes a bracket with suction cups for secure installation, making it suitable for both new aquariums and as a replacement unit. Whether for tropical fish or marine setups, it provides stable water temperatures without hassle, helping maintain a healthy aquatic environment.

Key Features:

• 300 W submersible aquarium heater
• Suitable for tanks up to ~300 L (both freshwater and marine)
• Impact‑resistant glass construction with waterproof sealing
• Easy-access temperature control dial
• On/off pilot light for operating status
• Protective bumper guard for fish safety
• Bracket with suction cups for secure, adjustable mounting

The Marina 300W Submersible Heater is a dependable, no‑fuss solution to maintain stable water temperatures in medium to large aquariums. Its robust build and straightforward controls make it a great choice for both casual hobbyists and experienced aquarists alike.

Specifications:

• Power: 300 W
• Suitable aquarium volume: up to ~300 L
• Material: Impact‑resistant glass
• Mounting: Submersible with suction cup bracket
• Temperature control: Pre‑set dial
• Safety features: Bumper guard, waterproof sealing
• Included: Heater with suction-bracket and cable