Rheem Performance Point of Use Electric Tankless Water Heater RETEX-08. Rheem Performance Point of Use Electric Tankless Water Heater RETEX-08" is in sale since Wednesday, October 21, 2020. This item is in the category "Home & Garden\Home Improvement\Heating, Cooling & Air\Water Heaters\Tankless Water Heaters". The seller is "worldclass32" and is located in Pompano Beach, Florida. This item can be shipped to United States.