Midland Metal 540664 Hex Reducer Bushing, 3/8 in MPT x 1/4 in FPT, Steel

Hex Pipe Reducer Bushing, Connection Size 1: 3/8 in, Connection Type 1: Male NPTF, Connection Size 2: 1/4 in, Connection Type 2: Female NPTF, Steel, 3/8-18 x 1/4-18 Thread, 375 deg F