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Brennan Industries 6401-06-04-O Steel Straight Tube Fitting, 9/16"-18 SAE ORB x 1/4"-18 NPTF Thread, 3/8" Male O-Ring Boss x 3/8" Male NPTF: Threaded Tube Fittings: Amazon.com: Industrial & Scientific
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SS-400-1-6ST Swagelok Tube Fitting, Male Connector, 1/4 in. Tube OD x 9/16-18 Male SAE/MS Straight Thread
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Pipe Fittings Adaptor ,Practical ,5/8"-18 Male Thread, Durable Tube Adapter, Connector, for Oil Liquid Petroleum Fuel Gas Lines - Walmart.com
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Brennan Industries 6405-06-06-O Steel Straight Tube Fitting, 9/16"-18 SAE ORB x 3/8"-18 NPTF Thread, 3/8" Male O-Ring Boss x 3/8" Female NPTF: Amazon.com: Industrial & Scientific
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8-DMC-4 Dixon Instrumentation Fitting - Stainless Steel Male Connector - 1/2" Tube OD x 1/4"-18 Male NPT (Pack of 10) — HoseWarehouse
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