The Nissan Altima HVAC vent grille for the left side of a 2012 vehicle is a gray plastic grille with a horizontal billet style. It is a genuine Nissan part with a unique manufacturer part number E773-5171e100. This durable and lightweight grille is designed for a specific vehicle model and is painted to match the car's exterior. Made in the United States, this grille is a perfect fit for the left side of the Nissan Altima.