Four single key traps mounted on a common base for use with Schlage modular cylinders including Primus and Everset high security mortise cylinders.  Specify 1 1/8" or 1 1/4" cylinder.  All four key traps work independently of each other.  Includes special link that replaces the mortise cylinder cam.  The four gang key trap model measures 4" x 12-9/16" x 2-5/16" high.  Cylinders not included.  Not for use with interchangeable core cylinders.