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Anvil 2126 Forged Steel Pipe Fitting, Class 3000, Socket Weld Union, 1/2" NPT Male x 1/2" NPT Female: Industrial Pipe Fittings: Amazon.com: Tools & Home Improvement
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Smith Cooper Cast 150# Stainless Steel 1/2 in. Union Fitting -Socket Weld - John M. Ellsworth Co. Inc.
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