O-Ring, for Desiccator Base, with ring-grooved flange only, from silicone (VMQ)O Ring, DN 200, suitable only for desiccator base, with ring grooved flange The O ring is a seal suitable for the desiccator with fluted bevel, which seals the desiccator tightly with a precisely fitting shape. The use of the seal eliminates the need for grinding grease. Features and Benefits: With the help of the O ring, a tight seal of the desiccator with annular groove flange can be achieved Suitable only for desiccator base with ring grooved