Product Details
300lb galvanized iron caps are designed to close the end of male-threaded pipe in systems requiring higher pressure ratings. These fittings are ideal for system termination, testing, or temporary shutoff, providing a secure, leak-resistant seal in demanding applications. They have a heavier, more robust design compared to standard 150lb fittings, offering added strength and durability. Hot-dip galvanized to ASTM A153, the caps provide strong corrosion resistance for extended service life in harsh environments. Each fitting includes full lot traceability, with material test reports available upon request. Manufactured in an ISO-certified facility, these caps are pressure tested and conform to ASME B16.3, ASTM A197, and ASME B1.20.1 standards to ensure consistent fit and performance.








