Electric Submersible Water Heater 3000W for Swimming Pool, Portable Pool Diving Heater for Inflatable Pools, Bathtubs, and Plastic Barrels. Fast heating performance for comfortable use in cold weather. Safety First: This product is not intended for use by children. Do not touch the heater directly when in operation. Made with high-quality copper wiring and stainless steel outer casing for rust resistance and enhanced safety. Prevents direct contact between the heating element and water for safer operation. Durable and Safe Design: Constructed with premium PP material—non-toxic, odorless, environmentally friendly, and long-lasting. The heater features a robust shell for improved durability and user safety. Fully CE certified to ensure quality and compliance. Read Instructions: Always read and follow the safety instructions and precautions before use. Intended for use in various containers including inflatable pools, bathtubs, foot baths, and plastic barrels. Note: Slight variations of 2-3 cm may occur due to manual measurement. Color may vary slightly due to monitor display differences.