The answer to this question really depends upon the type of spray booth you have. If you have a booth in which the filter is designed to sit vertically then the Procart filters are better suited. If your booth has horizontal filter frames then you can use either filter however if you are able to fit a Procart then we always recommend using this range. If your filters are designed to sit horizontally at floor level, or lower, then the Profibre, the Procart K or Procart KH is, generally, better suited.
The Procart range of filters will always offer better filtration and maintain a constant and smooth airflow for much longer than the Profibre range. However every spray booth is different and every customer wants something different from their filtration hence the reason why we have a range of filters so that you can have the right filter match your requirements.