Final answer:
To clear a filtered screen from a CTRL-L search, press Ctrl + L again or try Ctrl + R to refresh the page.
Step-by-step explanation:
To clear a filtered screen from a CTRL-L search and see the entire Order Guide or Product Catalog, you should press Ctrl + L again. This key combo is typically used to clear or refresh the current search or filter. If pressing Ctrl + L does not clear the filter, consider trying Ctrl + R which often refreshes the page in web browsers, or consult the specific application's help resources for the correct shortcut.