ZOUNI 2pcs Reducing Hex Nipple, 304 Stainless Steel 3/4" NPT Male x 1/2" NPT Male Pipe Fitting Reducer Nipple Adapter 2000psi Reducer Straight Connector(2pcs, 3/4"-1/2")

ZOUNI 2pcs Reducing Hex Nipple, 304 Stainless Steel 3/4" NPT Male x 1/2" NPT Male Pipe Fitting Reducer Nipple Adapter 2000psi Reducer Straight Connector(2pcs, 3/4"-1/2")

4PCS Hex Nipple 1/2" Male x 1/2" Male Pipe Fittings, 304 Stainless Steel 1/2 inch NPT Male Threaded Pipe Adapter Fittings Equal Nipples Connectors, Male Straight Connector Pipe Fitting

2 Pcs Reducer Hex Bushing, 304 Stainless Steel 3/4" Male NPT to 1/2" Female NPT（ 3/4"MNPT - 1/2"FNPT） Pipe Fitting Hex Bushing, Heavy Duty Pipe Fitting Reducer Adapter