The Vemo Blower Motor Resistor - V20790004 is a replacement part for a vehicle's blower motor system. It is designed to regulate the speed of the blower motor, which controls the airflow into the vehicle's cabin. This resistor is made by Vemo, a reputable manufacturer of automotive parts. It is compatible with various makes and models of vehicles and is made with high-quality materials for durability and reliability. This product is essential for maintaining proper air circulation and temperature control in a vehicle's heating and cooling system.