The Tuthill Fill-Rite Air Check Valve Assembly (Model AC30A65XAA) features a 3-inch NPT connection, designed to prevent backflow in fluid transfer systems. Constructed from high-quality materials, this valve assembly ensures durability and reliability in demanding environments. It is engineered to meet industry standards, making it suitable for various applications, including fuel and chemical transfer. The assembly is easy to install and maintain, providing a secure solution for efficient fluid management. Ideal for professionals seeking to enhance their system's performance, this air check valve is a critical component for safe operations.