FITS: Almost all including: for , , State, and many more that also use the standard 3/4 inch NPT Anode Rod Connection.EXTEND LIFE OF YOUR WATER HEATER: Magnesium anode rod gets corroded faster than tank of water heater. Usually you should check magnesium anode rod every 2 years. Replacing your anode rod at regular intervals may increase the life of your water heater, saving you money, time and the inconvenience of having to replace your water heater.ADVANTAGES OF MAGNESIUM ANODE RODS: Magnesium anode rods produce a stronger current than Aluminum rods making them more effective at keeping the water tank from corroding. Anode rod is expected to provide about two years of protection.Size:Length: 44 inches/ 1100mmDiameter: 0.8inch /21mm, 3/4inch NPT threadcolour: silverMaterial: MetalPackage Contents:1 x Magnesium Anode Rod1 x 1-1/16inch Hex Socket Tool1 x PTFE Sealing TapeOnly the above package content, other products are not included.Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.