310T-1 Diameter: 1" Features: -Tee.-All fittings are pressure tested, 150 PSI.-Zinc coating is applied by hot dip process.-Tapped to American standard oil thread.-For 150 lbs maximum working steam pressure or 300 lbs non-shock working oil, water or gas pressure at ordinary air temperature.-Diameter: 0.13" - 2". Color/Finish: -Black finish.