Features: 1.Perfect Protection: The magnesium anode rod prevents water heater damage and provides reliable protection for your water heater. 2.Brass Cap: The water heater anode rods are equipped with a brass cap, ensuring a secure and tight fit, preventing any leaks or damage. 3.Precise Thread: The anode rods feature a 3/4in NPT thread, ensuring compatibility with most RV hot water heaters on the market. 4.Rugged Structure: Made of excellent magnesium alloy for excellent durability, and the sturdy construction is resistant to deformation. 5.Exquisite Workmanship: These anode rods are precision machined to ensure a perfect fit and optimal performance in RV hot water heaters. Specification: Item Type: Water Heater Anode Rod_x000D_ Material: Magnesium alloy_x000D_ Magnesium Rod Size: Approx. 21mm/0.82in diameter x 235mm/9.25in length_x000D_ Thread specification: 3/4in NPT_x000D_ Application: For most RV hot water heaters with 3/4in NPT Anode Rod Connection_x000D_ Replacement for Suburban, for Mor-Flo RV water heaters