Suburban 232767 Replacement RV Anode Rod Magnesium Bundle purchase will come with: <br> 1) 2 Set of Our 99.8% Pure High-Quality Magnesium Size 9.25 Inch Length and 0.75 Inch NPT Thread. Replace one and Keep a spare while you are RVing. <br> 2) Wrench Set Socket make from A3 Carbon Steel Galvanized Construction for Corrosion Resistant, and Zinc plated for durability to easily remove the Anode Rod and Water Heater Element. <br> 3) Teflon tape to prevent leak.