This square air outlet vent is designed for parking air heaters, providing efficient air distribution in your vehicle. Its sleek design seamlessly integrates with your car's interior, ensuring a modern look. Ideal for RVs, trucks, and boats, it enhances air circulation, keeping the environment comfortable during long journeys. Features -Hole diameter:73mm -Color:Black -Material:Plastic -Size:10.00X10.00X6.00cm/3.93X3.93X2.36in -Highefficiency airflow: quickly resolves the cold interior of your vehicle, ensuring you feel warm and comfortable even in the harshest winter conditions -Compact square design: the square air outlet design is compact and convenient, taking up minimal space inside your vehicle and allowing for easy installation -Multifunctional: not only heats the air, but also provides warm air and air conditioning functions, catering to your needs across different seasons -Durable materials: made from durable and reliable materials, ensuring use and reducing the need for frequent repairs or replacements -Wide compatibility: suitable for various types of vehicles, including cars, commercial vehicles, and trucks, effectively addressing cold interior issues and enhancing driving comfort Package list: 5 air conditioning outlet