The Laguna Power Heat 500-watt De-Icer will keep an area thawed and open in the pond, allowing the release of toxic gases from fish respiration and decomposing organic matter to escape. At the same time, it allows oxygen to re-enter the pond. The Laguna Power Heat 500-watt De-Icer is Protected for plastic and liner ponds, and it’ll not harm fish or plants. The heater has dual-zone integrated thermostats to assist the heat distribution, and it’s suitable for garden zones 1 to 8, which is 20 degrees Fahrenheit and below. Store indoors after winter season.Do not use extension cords

500-Watt Pond Heater – Efficiently maintains a thawed opening in out of doors ponds, ensuring harmful gases escape and oxygen re-enters, promoting a healthy environment for fish.
Thermostat-Controlled Pond De-Icer – Dual-zone thermostats ensure even heat distribution, providing reliable performance in cold climates down to -6°C (20°F).
Protected for Fish & Plastic Ponds – Designed to be used in plastic and liner ponds, this de-icer is Protected for fish and aquatic plants, offering peace of mind right through the winter months.
Durable Stainless Steel Construction – Made out of high-affect stainless steel for enhanced durability and resistance to winter conditions, ensuring long-term use.
22 ft Grounded Electrical Cord – Long, grounded cord allows for flexible placement in quite a lot of pond sizes, providing ease of installation and added safety.