The MIFAB® MI-GAP-NPB Series copper air gap fitting complete with a 1/2" (13) male N.P.T. fitting at the inlet supply incorporating a stream directing nozzle, a 1/2" (13) N.P.T. female outlet, and a 1" (25) vertical air gap. It is manufactured in accordance with ANSI/ASME A112.1.2 air gap in plumbing systems standard.