The product is an OEM Nissan Altima AC heater temperature HVAC climate control module unit for model years 2005-2006. This silver-colored unit is a genuine Nissan part with the manufacturer part number 27500 ZB010. It serves as the climate control center for regulating the temperature and air conditioning system in the vehicle. Perfect for replacing a faulty or worn-out climate control unit, this OEM part ensures a proper fit and optimal performance for the Nissan Altima.