Size & Compatibility: Magnesium anode rod, 9.25" long, 3/4" NPT Thread, matches 1-1/16" socket. Replacement Part Suburban 232767 and Mor-Flo water heaters. Not compatible with Atwood Water Heater.Extend the life: Replacing the anode rod in a water heater before it fails can slow down corrosion inside the tank and significantly extend the life of the water heater.Safe & Reliable: RV anode rod uses magnesium AZ31B alloy, which is 100% safe for human body. A magnesium water heater anode rod protects your tank better and lasts longer than aluminum/zinc rods.Scale Reduction and Odor Elimination - The magnesium rod can remove scale from the tank, It can also eliminate the smell of hydrogen sulfide in the tank.Our Services: Voluntary 30 Day Return. Please contact us if you have any questions about the product, and we will respond to you as soon as possible.