Pond Heater for PondsLawn/ Garden Specialty Netting/ Composting/ PondsProtects Koi And Other Fish During Freezing Temperatures.For Ponds At Least 18 Inches Deep.Low Voltage Warmer That Floats On Top Of The Pond.Energy Efficient.Power Cord Included.Ul Approved.All items are brand new, never worn and never used. We guarantee the authenticity of all items.