Marineland Precision Heater 300w

Precision Submersible Heaters Adjustable temperature dial clicks through each degree for accuracy Thermal switch automatically turns off past max preset and resets once the temperature lowers Advanced mica core heating element for efficient heat transfer and enhanced durability Three window positions to view the temperature display For Freshwater and Marine aquariums cUL listed heater Precision Submersible Heater Selection Precision 50 Up to 12 Gallons Precision 75 Up to 20 Gallons Precision 100 Up to 29 Gallons Precision 150 Up to 40 Gallons Precision 200 Up to 55 Gallons Precision 250 Up to 70 Gallons Precision 300 Up to 80 Gallons Precision 400 Up to 125 Gallons