The Dorman Secondary Air Injection Check Valve 911-622 is a durable and high-quality replacement part manufactured in China. This check valve is designed to regulate the flow of air into the secondary air injection system, ensuring optimal performance and efficiency. With the OE/OEM part number 911-622, this product is a reliable choice for maintaining your vehicle's air injection system. Additionally, it is important to note that this product carries a California Prop 65 Warning due to potential health risks associated with its materials.