Straight Adapter 1/4 FNPT x 3/8 MBSPT

Straight Adapter, Connection Size 1: 1/4 in, Connection Type 1: Female NPT, Connection Size 2: 3/8 In, Connection Type 2: Male BSPT, Material Construction: Steel, Thread Size 1: 1/4-18, Thread Size 2: 3/8-19