The SEALFAST 1-1/2" Aluminum Cap is a lightweight yet robust solution for sealing pipes and hoses. Constructed from high-grade aluminum, this cap provides excellent corrosion resistance and durability. Its National Standard Thread (NST) design ensures a secure fit with standard fire equipment. Ideal for use in fire protection systems, this cap is designed to withstand harsh environmental conditions. The aluminum construction also makes it easy to handle and install, ensuring a reliable seal for various applications.