Electric Submersible Water Heater 3000W for Swimming Pools and Bathtubs – Rapid Heating Rod with Intelligent Timer Function. This portable diving heater is designed for use in inflatable pools, plastic pools, bathtubs, foot baths, and similar containers. Ideal for home use, providing fast and efficient water heating during colder weather. Safety and Quality: Constructed with high-quality copper wiring and a stainless steel outer casing for durability and rust resistance. The design helps prevent direct contact between the heating element and the user, enhancing safety during operation. The heater features a high-quality PP plastic shell that is non-toxic, odorless, and environmentally friendly. Fully CE certified to ensure reliable performance and safety standards. Important Usage Instructions: Read all safety instructions carefully before use. This product is not intended for use by children. Do not touch the heater directly while it is operating or immediately after use, as the surface may be hot. Note: Slight variations of 2-3 cm may occur due to manual measurement. Additionally, color may vary slightly due to differences in monitor displays.