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The Malleable 521-351 is a one inch by one-quarter inch black iron reducing coupling. It connects two pipes with different diameters. Made from durable malleable iron, this fitting ensures a tight and long-lasting seal.
This coupling is perfect for various applications, including transporting oil, grease, LP gases, and fuels. The product meets industry standards, such as ASTM and ASME, ensuring safety and reliability.
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