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Proline Series 3/8-in x 3/8-in Compression x Mip Adapter Coupling Fitting in the Brass Fittings department at Lowes.com
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FasParts 3/8" Hose ID/Hose Barb to 1/4" Female NPT FIP FPT Straight Brass Fitting Fuel/Air/Water/Boat/Gas/Oil WOG: Amazon.com: Industrial & Scientific
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3/8" Left Hand Thread, Welding Hose Coupling for Acetylene Line: Amazon.com: Tools & Home Improvement
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LTWFITTING 3/8 in. ID Hose Barb x 1/2 in. FIP Lead Free Brass Adapter Fitting (25-Pack) HFLF39156825 - The Home Depot
Airgas - RAD64003979 - RADNOR™ 3/8" - 24 Male X 9/16" - 18 LH Female Brass Acetylene/Fuel Gas Hose Adapter
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1/2" Hose ID, 3/8" NPT Male Barb Hose/Tubing Fitting Connector: Amazon.com: Tools & Home Improvement
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