Four-Way Push Pull Valve 320175 320121-1/4"-18 FPT Ports Air Control Valve Compatible with Velvac - Replacement for Truck Air Systems

["Direct Replacement: This Four-Way Push Pull Valve is designed to replace part numbers 320175 and 320121. It serves as a reliable replacement for maintaining the air system integrity in compatible heavy-duty vehicles.","Compatible with Velvac: Engineered to meet the specifications of Velvac systems. This valve ensures seamless integration and reliable performance for your truck's air controls.","Standard Port Size: Features 1/4\"-18 FPT (Female Pipe Thread) ports. This standard sizing allows for easy connection to existing air lines, ensuring a secure and leak-free fit during installation.","Durable Construction: Built to withstand the rigors of commercial vehicle operation. The robust design ensures long-lasting performance and consistent air flow control in demanding environments.","Essential Air Control: Ideal for managing air flow in various truck applications. This push-pull valve provides precise control, making it a necessary component for fleet maintenance and repairs."]