1-*Airex Brand Shock Proof Completely Safe Due to Advanced Technology, Heating Elements Are Primarily With Systems Like Process Systems, Water Geyser, Boilers, Water Heaters, Heat Transfer Systems, 2-*Material - Stainless Steel With washer to avoid leakage, Voltage - 220v-240v, Tube Dia Size - 8.7 mm, Dimension Full Heater Length - 9 inches, (Approx), Pipe Length - 7.5 inches (Approx), Weight - 190-210 Gram (Approx), 3-*Available In Various Wattages And Voltages. Note - Warranty Against Manufacturing Defects.