Thank you for asking, Lucky. Water Heater Manufacturers often use similar parts. We would suggest contacting AO Smith to make sure this will work on their elements. If you have any further questions, please contact us at 1-866-279-4566. Thank you and have a great day.
This is a question best directed at the Home Depot, however if you are looking to order this part you may contact our Rheem Parts Dept at 1-800-621-5622