This heating element is designed for installation in radiators (aluminum, bimetallic, or even cast iron). These heaters are controlled by a thermostat and feature two terminals for power connection and one for grounding. The design includes a tube for inserting a temperature sensor. The heating element has a 1-inch left-hand thread. It is tightened using a 32 mm wrench. A heat-resistant sealing gasket is included in the set.