Aquatop 75 watt Submersible Glass Heater Part # GH-75
 
Features:
Fully Submersible
Easy to use temperature setting
Adjustable temperature with over-wind protection
Suitable for fresh and saltwater use
 
Specifications:
Tank Capacity: Up to 20 gallons
Power: 75W
Temperature Range: 68-93F
Dimensions: 1.25" L x 1.25" W x 8.5" H