Rheem SP11309C R-Tech Resistor Magnesium Anode Rod with 44-Inch Length and 0.7-Inch Diameter<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>For best results， use only Rheem replacement parts for repairing your Rheem Water Heater</li><li>Anodic Material: Magnesium， Total Length (in.): 44-3/8， Rod Diameter (in.): 0.700， Hex Head Size (in.): 1-1/16</li><li>Thread Size - NPT (in.): 3/4， Resistored: Yes</li><li>Kits which contain this part: 45W363</li></ul></div><img src="http://ecx.images-amazon.com/images/I/31D4WF8NJrL.jpg" noproxy>