Hello Sid, This tool is designed to remove the heating elements from the front of the heater, it is not designed to remove the anode, he socket you are looking for is 1 and 1/16th of an inch.
Thank you for asking, Shawn. This Element Wrench is set up to work on 1.5 inch nuts. If you have any further questions, please contact us at 1-866-279-4566. Thank you and have a great day.