You change the product group.
This means that another, separate basket is created for which other parameters can be selected.
The basket with your current selection remains available here without change.
General Shale is committed to customer satisfaction. Refer to the applicable Direct Market Terms and Conditions https://generalshale.com/direct-market-terms-and-conditions/ or Distributor Terms and Conditions https://generalshale.com/distributor-terms-and-conditions/ for Return Terms.