The 4" Spring Loaded Check Valve Seal Kit includes two sealing rings and one stem gasket, designed for reliable sealing in check valves. This kit is essential for maintaining the integrity and performance of check valves in various applications, including water treatment and industrial processes. The high-quality materials used in this kit ensure durability and resistance to wear, providing a long-lasting solution for valve maintenance. Easy to install, this seal kit meets industry standards for safety and compliance, making it a reliable choice for any maintenance project.