Aquatop 50 Watt Submersible Glass Heater Part# GH-50
 
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 13 gallons
Power: 50W
Temperature Range: 68-93F
Dimensions: 1.25" L x 1.25" W x 8.5" H