The product is a Filler Cap designed for coolant recovery systems, with a pressure rating of 7PSI and a double seal for optimum performance. It is specifically intended for use with Northern Lights brand vehicles. This cap is essential for maintaining proper pressure levels in the engine cooling system, ensuring efficient operation and preventing overheating. Its design allows for easy installation and reliable sealing to prevent coolant leaks. Perfect for those in need of a high-quality replacement or upgrade for their vehicle's cooling system.