The Marineland 150 Watt Visi-Therm Submersible Heater is perfect for freshwater and marine aquariums.
Features:
- 12" Tall
- For aquariums up to 40 gallons
- Gives precise control to accurately set temp to + or - 1F with every "click"
- Advanced mounting bracket securely attaches to glass and provides 3 window positions to view temp display from multiple angles
- LED lights when heater is operating
- Easy-to-view sliding scale tells the exact temperature setting
- Double strength glass casing for extra durability
