SuperWhole 1/2"x3/8" Male Hex Nipple Threaded Reducer Pipe Fitting Stainless Steel 304 NPT Shape: Threaded Reducer (Male x Male) Connection:NPT-NPT.Measurement: 1/2"x3/8" Material: 304 Stainless steel Other size is available too,please check it in our store Package Include:1 piece x 1/2"x3/8" Male Hex Nipple Threaded Reducer Pipe Fitting Stainless Steel 304 NPT