The GSU-202-120-CT urn heater has been obsoleted. The replacement urn heater is only 1500 watts 120 volts and 12.5amps. The overall heater length dimension is 7-7/16 inches, the  inside tank height is 2-1/8 inches, and the width dimension is 3-1/16 inches. This heater comes with two copper sheath tubular elements that are silver brazed into a brass header. This heater is also supplied with a standard 4 inch square conduit box. The obsoleted Marathon/Glenn Electric immersion heater part number is GSU-202-120-CO OR 10-6411-39. An optional thermal cut-off is supplied with this immersion heater. This protective mechanism will shut the power off to the heater whenever a low liquid level is detected.