Do not use this item for any installation or repair of potable water applications. This product does not comply with the "Safe Drinking Water Act," which requires that products meet low-lead standards in order to be used in systems providing water for human consumption (drinking or cooking). Exact replacement for my GE water heater manufactured by Rheem. I got the model number of the element by looking it up with the serial number on Rheem's website. The part is labeled from ProTech and not Rheem (some reviewers have complained about this) but it is from Rheem, probably because Rheem does so much private label manufacturing. Rheem Electric Water Heater Elements for all models and size heaters. If you need help selecting a specific element for your application, please call Boston Heating Supply and we will be happy to assist you. Rheem PROTECH screw-in water heater elements feature true OEM performance. These are the same elements that are used in the production of every Rheem Marathon electric water heater. Rheem heating elements use state of the art titanium construction that helps increase the life of the element in all water conditions. 1.5 in.