This heater has a hard abs plastic outer case, and two glass sleeved heaters inside the plastic case. It feels very well made and not cheaply made. Inside the box is foam packaging holding it securely in place.

When you buy this and follow the directions this heater will work fantastically. It does the job! Your products remain top notch in my book! Of course many heaters as well.

Accuracy is good as i tested with another thermometer and was within 1 degree. Keeps the temperature perfect. Even with a plus or minus 15deg room temp swing in 8hrs up and down.

This hygger heater is a real upgrade from a glass tube aquarium heater. The heater has a much nicer look compared to a tube heater. It's compact, doesn't take up too much space and does the job.

This heater is being utilized in one of my smaller tanks with is sized at 20-gallons. I have a 10 gallon tank with a betta and snails. The only thing i am wondering about is how easy this heater can be cleaned once algae starts to grow on its shell an...  Read More

It heats up but the temp control doesn't work. Returned due to lack of quality control.