Extend your RV water heater's lifespan with this magnesium anode rod designed for 3/4 NPT threaded connections. Features corrosion-resistant magnesium alloy construction that outperforms aluminum alternatives for enhanced tank protection. Package includes 44-inch rod (1100mm length, 21mm diameter), 1-1/16" hex socket tool, and PTFE sealing tape for secure installation. Universal compatibility with most standard water heater models requiring 3/4 NPT fittings. Recommended maintenance: Inspect anode rod every 24 months to optimize water heater performance and prevent premature tank failure. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-dadangjia