2-1/2in x 2in | 6in | Counter Sunk Plug | Hex Reducer Bushing | Reducer Couplings | Socket Weld Flanges | G 1/2 B x 1/2 in. Male National Pipe Thread (MNPT) with 1/4 in. Female National Pipe Thread (FNPT) | Gasketed | MIP Threaded | Socket Weld