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Profile KB11B is the intermediate chevron packing ring from our KB112B profile. It can be used individually in certain circumstances where the profiled female support ring may already be profiled as part of the metallic hardware. This is sometimes appropriate in older hardware and fluid sealing systems such as presses used in steel plants. To offer the KB11B individually we must have confirmation of the mating hardware dimensions, specifically where the non-pressure side of the seal will be seated.