SERIES DISCONTINUED
ProMax-Standard Electric spec sheet (ECT-80 product specification)
The ECT-52 has been discontinued since July 22, 2015 (Source: https://www.supplyhouse.com/AO-Smith-ECT-52-50-Gallon-ProMax-Residential-Electric-Water-Heater-Tall-Model)
ProMax-Standard Electric spec sheet (ECT-80 product specification)