Crane Payment Solutions’ Universal Hoppers were first introduced in 1984. The MKII and MKlll models proved themselves to be exceptionally reliable, with high count accuracy. The MK4 is the latest generation of this extremely successful series. The MK4 Universal Hopper can be used as a direct replacement for MKll and MKlll Hoppers. When ordering MK4 Universal Hoppers as a replacement, it is important to specify which version is being replaced.