POND DE-ICER 300WT SIMULATED ROCK POND DE-ICER 300WT SIMULATED ROCK $31.25 SKU: TET26429 QTY: Click here to save 5% off of your order! TETRA POND 300 WATT DE-ICER Winter Survival Solution for Fish De-Icer helps fish stay healthy all winter long HERE'S HOW IT WORKS: Toxic gases caused by decaying matter and fish waste can become trapped under the ice during the winter. Keeps a small area of the pond ice-free, allowing harmful gases to escape through the opening. This helps your fish survive through the winter months. Effective to -20°F or -28°C Energy Efficient: Thermostatically controlled 300 watts. Saves electricity by shutting off power when not needed. 15 foot electrical cable UL & CUL approved 3 year manufacturer warranty