Straight Adapter 1/4 FNPT x 1/2 MBSPT

Straight Adapter, Connection Size 1: 1/4 in, Connection Type 1: Female NPT, Connection Size 2: 1/2 In, Connection Type 2: Male BSPT, Material Construction: Steel, Thread Size 1: 1/4-18, Thread Size 2: 1/2-14