* Type - Face seal secured with dual chains * Designed for vehicles with rectangular shaped master cylinders ranging in size from 3-1/2 In. x 6 In. (90 mm x 150 mm) to 4-1/4 In. x 7-3/4 In. (108 mm x 200 mm) * Offers a unique, adjustable clamping design that applies pressure to the center of the adapter for a more uniform seal