MSI Products 1/2" x 3/8" 300lb Galvanized Malleable Iron Reducing Coupling, 350-600 PSI

300lb Galvanized Iron Reducing Couplings are designed to connect two sections of threaded pipe with different diameters in systems requiring higher pressure ratings. Ideal for stepping down pipe size, these fittings provide a simple and efficient transition without the need for additional components.

Built with a heavier, more robust design than standard 150lb fittings, they deliver added strength and durability for demanding applications. Hot-dip galvanized to ASTM A153, they offer 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 couplings are pressure tested and conform to ASME B16.3, ASTM A197, and ASME B1.20.1 standards for consistent fit and performance.