312CO-34 Diameter: 0.75" Features: -All fittings are pressure tested, 150 PSI. -Zinc coating is applied by hot dip process. -Finish: Black. Application: -Drain. Product Type: -Coupling. Finish: -Black. Dimensions: Diameter 0.13" - Overall Width - Side to Side: -0.13". Diameter 0.25" - Overall Width - Side to Side: -0.25". Diameter 0.38" - Overall Width - Side to Side: -0.38". Diameter 0.5" - Overall Width - Side to Side: -0.5".