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Amazon.co.jp: 1/8 '1/4' 3/8 '1/2' 3/4 '1' Brass Pipe Hex Nipple Fitting Quick Coupler Adapter Thread - Thread Water Oil Gas Connector, 1l4 x 1l2 : Industrial & Scientific
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CRAFTSMAN 3/8" to 1/4" Socket Adapter 3/8" Drive Female to Male (CMMT99292) : Amazon.de: DIY & Tools
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Amazon.co.jp: 1/4 '3/8'1/2' Male Thread Stainless Steel Pipe Fitting Nipple Connector Adapter with Barb 8mm 10mm Hose Barb, 1/2", 8mm : DIY, Tools & Garden
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BrassCraft 1/4-in x 3/8-in Compression x Mip Adapter Fitting in the Brass Fittings department at Lowes.com
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Value Collection - 3/8 Female & 1/4 Male NPTF Steel Hydraulic Hose Adapter - 59755272 - MSC Industrial Supply
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4pcs/lot 1/4 3/8 1/2 Drive Socket Adapter Converter Reducer Air Impact Socket Wrench Adapter Hand Tools Set - Wrench - AliExpress
PARKER Reducing Adapter: 316 Stainless Steel, 3/8 in x 1/4 in Fitting Pipe Size, Female NPT x Male NPT - 1DFY1|6-4 RA-SS - Grainger
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