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Viega 79245 ProPress Zero Lead Bronze Adapter with Male 1-Inch by 1-Inch P x Male NPT - Pipe Fittings - Amazon.com
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Amazon.com: BRASS ADAPTER 1" NPT FEMALE X 1" BSPP MALE WITH SEALING WASHER : Industrial & Scientific
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Kobalt NPT Brass Bushing Adapter 1/2-in (M) x 1/4-in (F) in the Air Compressor Fittings department at Lowes.com
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