Abstract: A liquid chromatography seal capable of withstanding pressures in excess of 8000 to 10,000 psi utilizing an annular ring disposed upon either the seal or the seal seating surface. The annular ring is triangular in cross section. The triangular cross section forms three seals. The first seal is the innermost face of the triangular cross section, the third is the outermost face, and the second is the angle between the first and third. The structure of the seal enables the column to be leak-free even with a minimum of torque applied to the fasteners. Another important aspect of the seal is that it eliminates the need for a disperser frit since the seal itself acts as to disperse liquid to the frit.