The difference between the Green and the Regrind Green in our Rubber Pavers is the actual look of the pavers. The paver colors that state regrind has reground up rubber in them, giving them a less consistent color. In these pavers, you will see different colors of color flec. Our standard colored pavers have a consistent color to them. Both pavers are made the same way and have the same properties and are installed the same way. The only difference is color consistency.