MMZP Pond Heater for Outdoor Ponds with Fish, Thermo-Pond 3.0 Deicer Keeps a Hold in the Ice for Oxygen Exchange for Live Fish, Energy Efficient, Safety Listed - 12in Black 100W

LOW WATTAGE: The world's most successful and efficient low-wattage pond de-icer HOLE IN ICE: Uses only 100 Watts and maintains a 12" hole in backyard pond ice for just pennies a day (it will not keep other open areas in your pond) FLOATING: Floats on top of the water and is completely safe when used with a pond liner or plastic pond FISH FRIENDLY: Assists the escape of toxic gases all winter long to help maintain a toxic-free environment for fish living under the ice TESTED: Tested in northern Wisconsin at sub-zero temperatures, keeping a 12" hole in the ice of your backyard pond (pond should be at least 18" deep) SAFETY: This pond deicer has been tested & certified by MET Labs and exceeds USA/CA electrical safety standards; K&H doesn't just use safety listed parts, we safety certify the entire product - For outdoor use with 110/120 volt electrical current only BRAND YOU TRUST: Designed by K&H with OVER 20 years of experience in creating safe, innovative, quality products for pets