16 inch Ring Gasket, G400 Series , 1/16 inch Thickness, Temperature range (F): 260 to -260, Pressure Class 150, Color: White, For Use With: Hydrochloric Acid(35%), Sulphuric Acid(50%), Nitric Acid(40%), Ammonia(28%), Caustic Soda(40%), Benzene, Ethanol, Phenol, Trichloroethylene, Hydrofluoric Acid, Fluorine(Gas), Bromine, Chlorine, Sulphur Dioxide