The Tesla TIH 520 Premium 23" Copper Immersion Heater & Thermostat is a high-quality water heating solution, designed for efficient, reliable, and long-lasting performance. Crafted from premium-grade copper, this 23-inch immersion heater offers excellent thermal conductivity and corrosion resistance, ensuring optimal energy efficiency. The integrated thermostat provides precise temperature control, preventing overheating and reducing energy consumption. Perfect for use in vented hot water cylinders, this immersion heater is easy to install and delivers a consistent supply of hot water for both domestic and commercial applications.