Features When the water temperature exceeds 40℃, scale will be generated in the water heater. The combination of magnesium rod and iron can protect the inner container from corrosion. Suitable for large hot water tanks such as motorhomes Magnesium rod, also known as anode rod, is mainly composed of magnesium. Made of environmentally friendly magnesium alloy for durability In the water heater liner, it and the inner liner (mainly iron) are in contact with water at the same time. Due to the chemical principle, the primary battery is formed, which can prevent corrosion and scale. Package List: 1 * Water Heater Anode Rod Features: 1. Magnesium rod, also known as anode rod, is mainly composed of magnesium. 2. In the water heater liner, it and the inner liner (mainly iron) are in contact with water at the same time. Due to the chemical principle, the primary battery is formed, which can prevent corrosion and scale. 4. When the water temperature exceeds 40℃, scale will be generated in the water heater. The combination of magnesium rod and iron can protect the inner container from corrosion. 3. Made of environmentally friendly magnesium alloy for durability 5. Suitable for large hot water tanks such as motorhomes   Specification:  Condition: 100% Brand New Product Material: AZ31B Environmental Magnesium Alloy Product Standard: EU Environmental Standards Package List