The SEALFAST 1 1/2" NST Cap & Chain is designed for secure closure of fire hydrants and hoses. This durable cap features a National Standard Thread (NST) design, ensuring compatibility with standard fire equipment. Made from high-quality materials, it offers excellent resistance to corrosion and wear, making it suitable for outdoor use. The attached chain prevents loss and ensures easy access during emergencies. This cap meets industry standards for safety and reliability, making it an essential component for fire protection systems.