The Ref 18 has been discontinued and Ref 20 will now shipped with the NuPrime logo on it instead of NuForce. There is no change in the design.
When NuPrime was first created, we took over the high-end line with 18 months of licensing rights to the NuForce logo so that there is a continuation without confusion.
Since then, NuPrime has grown far more than we have ever dream of, with four product of the year awards in 2015. So it is the perfect time in 2016 to put everything under the NuPrime brand.