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The APPROVED 4COUP is a reducing coupling with a four-inch to three-quarter inch NPT threaded design made from 150# black malleable iron. This fitting meets various industry standards, making it suitable for multiple applications, including air, water, oil, natural gas, and steam flow systems. The fitting is UL Listed and FM Approved for safe use at a pressure of three hundred PSI with a rigorous air test confirming its reliability.
Reliable coupling suitable for diverse plumbing applications.
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