Dixon® Flushface Female Plug, Series: DQC HT, 1-7/8-12 Nominal, Female O-Ring Boss™ End Style, 3 in Hex, 4.62 in Length, 3000 psi Pressure, Steel, 3.29 in OD Dimensions Dixon® HT16OF16 DQC HT Flushface Female Plug, 1-7/8-12 Nominal, Female O-Ring Boss™ End Style, Steel