Fluval P25 Pre-Set Aquarium Heater

Designed for aquariums up to 6 US gallons, the all-new P series heaters are fully submersible and offer a safe shatterproof polymer construction. They are equally convenient, featuring a pre-set temperature and LED running lamp.

• An ultra strong and durable polymer casing surrounds the heater, protecting it (and tank inhabitants) from damage.
• With no adjustment necessary, the heater is pre-set to
  maintain a temperature of 24 -26 °C (76 -78 °C)*.
• Whether in nature or in an aquarium, fish are sensitive to temperature fluctuations and can suffer from immune system shock if sudden shifts occur. Investing in a reliable heating system that produces consistent water temperature will help ensure the well being of your livestock.
  
• Size: 5.9 x 1.1 x 0.68"
• 25 Watt