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The Plumber's Choice Black Steel Pipe, 3/4 in. x 5 in. Nipple Fitting (10-Pack) 3450NPBL-10 - The Home Depot
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Amazon.com: 3/4 Inch Pipe Assortment, Malleable Threaded Pipe Nipples,Steel Pipe Fittings Great For All Your DIY Vintage Shelving Projects, Black (Includes 6 Of Each size, 1-6 Inches 66 Pieces in total) : Everything Else
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The Plumber's Choice Black Steel Pipe, 3/4 in. x 9 in. Nipple Fitting (Pack of 4) 3490NPBL-4 - The Home Depot
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Smith Cooper 150# Black Malleable Iron 3/4 in. Union Pipe Fittings - Threaded - John M. Ellsworth Co. Inc.
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SteelTek 3/4-in Structural Black Standard Rail Flange in the Structural Pipe & Fittings department at Lowes.com
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Smith Cooper 150# Black Malleable Iron 3/4 in. Cross Pipe Fittings - Threaded - John M. Ellsworth Co. Inc.
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Amazon.com: Everflow Supplies NPBL3411 Schedule 40 Welded Steel Nipple, 3/4" x 11" : Everything Else
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Supply Giant 3/4 Inch x 18 Inch Black Steel Pipe, Threaded Three Quarter Inch Malleable Fitting Build DIY Vintage Furniture, (Pack Of 5) - Amazon.com
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3/4 in x Close Welded Steel Nipple, Sch. 40 Black Pipe Fitting, Class 150 - BP6034XCL - Hi-Line Inc.
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