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Hygger [ HG998-50W ]

Hygger 998 Submersible Thermostat Heater for Fish Tank

Free Shipping & Return On All Orders!  Free Shipping & Return On All Orders!
  • Fully submersible heater
  • Rapid heating
  • ETL certification
  • Easy temperature control
  • Overheating protection
  • Ideal for saltwater & freshwater

Hygger 998 Submersible Thermostat Heater for Fish Tank


  • Description
  • Specification & Package
  • Instructions
  • FAQ

Precise Temperature Control

The heater rod temperatures range from 68°F-93°F(20°C - 34°C) to prevent harm to livestock.It stops when the surrounding water temperature reaches the set temp, and starts to work when the surrounding water temp is low, and it cycles over and over again to achieve equilibrium.

Products info
Products info

Safety Certificate - ETL Certification

2mm thickened quartz glass, 33% thicker than a normal aquarium, so heaters heat conduction is more even. Hygger provides the most effective guarantee for your fish tank, much safer for both human and animals.

Easy to Install

Fully submersible heater includes two suction cups for mounting in any suitable position horizontally or vertically.

Products info
Products info

Suitable for Small Freshwater and Saltwater Aquariums

This adjustable aquarium heater can be used for almost all kinds of small fish tanks: square tank, cylinder-shaped tank, or bowl tank; tanks made of glass, acrylic, or plastic. The quartz glass heater tube is durable for use in freshwater and saltwater.

 Warnings and Warm Tips

1. Always keep the heater rod fully submersed to avoid heater damage and accidental burns.

2. Unplug the heater for 15 minutes or so before water change or cleaning the fish tank. Otherwise, it may melt the case.

3.Regularly clean the heating plate. If the heating plate has impurities attached , the heating efficiency will be reduced.Do not use detergents or other chemical cleaners.

4.If you’re not satisfied with our product, we will provide a 12 Month Warranty and 24 Hour Professional After-sales Service.

 Product Parameters

Model HG998-50W HG998-100W HG998-200W HG998-300W
Power 50W 100 W 300 W 500 W
Application 15Gal 30Gal 60Gal 85Gal
Voltage 110 V / 60 Hz 220V-240V /50Hz
Control Range 4.9ft+4.9ft / 1.5M +1.5M
Temp Accuracy ±0.1°F

 Packing List

  • Aquarium heater x1
  • Sucker x2
  • User manual x1
Hygger 998 Submersible Thermostat Heater for Fish Tank
Usre Manual
Question:Can i used this for a tank that is not submerged in water?
Answer:  No, It must be completely immersed in water.
By Jnkany SELLER on October 16, 2021
Question:Does this heater come with suction cups?
Answer:  Yes 4.
By William C. on November 6, 2021
Question:Anyone know if this heater will fit in the protector shields/heater guards also offered on here, as both suction cups are removable?
Answer:  Hi, as for the suction cup issue, please contact the seller to ask for help.
By petfocused SELLER on April 26, 2021