CASCADE HEAT *10.5"/200 WATT heater is fully submersible for use with mushroom growing kits. It also automatically maintains the desired temperature after it has been set.
It has a visible temperature setting scale and is accurate to 1 degree. Uses heavy duty shock resistant glass to prevent damage. Lifetime Guarantee!
DO NOT USE THE HEATER WITH COLD WATER. Be sure to let it sit in luke warm water and allow it warm up, if it is placed in cold water and turned on it can shatter the glass, voiding the warranty and guarantee. Please read and follow all directions before and during use of this product.