The regular MicroGard are made by Wix and are similar to the Pro-Tec or Napa Silver / Napa Pro-select filters. They are not clones of the top line Wix filter, but more along the lines of the jobber filters. They are still good filters, and I have used them quite often over the years. The price is usually right.
The MicroGard Select are different. These are made in Vietnam. Some have posted pictures of them cut open, and they appear to be well made filters.