Dixon® diagnostic Female Coupler, Series: PD Series, 1/8-27 Nominal, FNPT, 21 mm Hex, 2.13 in Length, 6000 psi, 70°F, Steel, Polished Chrome, 0.98 in OD Dixon® 1PDF1 PD Series diagnostic Female Coupler, 1/8-27 Nominal, FNPT, Steel