Metalwork 304 Stainless Steel Pipe Fitting, Street Tee, Male Run Tee, 1/2" NPT Male x 1/2" NPT Female x 1/2" NPT Female, 1 Pc: Amazon.com: Industrial & Scientific
3pcs Solid Brass Hex Reducing Pipe Fitting 3/8 « npt Male X 1/2 « npt femelle filetée Coupleur Nipple Adapter Connecteurs pour eau / pétrole / gaz | Fruugo FR
304 Stainless Steel Pipe Fitting Reducer Adapter 1/2" NPT Male x 1/2" NPT Female | eBay
Amazon.com: KOOTANS 1/2 NPT x 1/2 NPT Male Solid Brass Hex Nipples, Heavy Brass Pipe Adapter Fittings Equal Nipples Connectors 4Pieces : Industrial & Scientific