Electric Submersible Water Heater 3000W for Swimming Pool Rapid Heating Portable Diving Heating Rod with Intelligent Timing Function Suitable for inflatable pools, bathtubs, plastic barrels, foot baths, and other water containers Made with high-quality copper wire for efficient heating performance Stainless steel outer casing provides rust resistance and enhanced safety Durable PP shell material, non-toxic, odorless, and environmentally friendly Designed to prevent direct contact between heating element and user for improved safety CE certified for quality and electrical safety compliance Intended for adult use; not suitable for children Do not touch the heater directly during operation to avoid burns Follow all instructions and safety precautions before use May have a 1–2 cm measurement deviation due to manual measurement Color may vary slightly due to monitor display differences