304 Stainless Steel, 1/2 in x 3/8 in Fitting Pipe Size, Reducing Hex Nipple - 60VF85|ZUSA-PF-7833 - Grainger
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911522-1 Hex Long Nipple: 316 Stainless Steel, 1/2" x 1/8" Fitting Pipe Size, Male NPT x Male NPT | Imperial Supplies
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Amazon.com: DAN SPEED Hex Nipple 2" Male x 2" Male 304 Stainless Steel threaded Pipe Fitting NPT (2 inch) : Industrial & Scientific
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