The S1 Packing Nut with O-Ring is a crucial component for ensuring leak-free connections in plumbing systems. Designed for durability, this packing nut is made from high-quality materials that resist wear and tear. The included O-ring provides an additional layer of protection against leaks, making it ideal for both residential and commercial applications. This product meets industry standards, ensuring compatibility with various plumbing fixtures. Its straightforward design allows for easy installation and maintenance, making it a reliable choice for any plumbing project.