This page is a redirect. The following categories are used to track and monitor this redirect:
From a cross-project redirect: This is a redirect from a title linked to an item on Wikidata. The Wikidata item linked to this page is duct flute (Q478634).
Use this template only on hard redirects – for soft redirects use {{Soft redirect with Wikidata item}}.
To a subtopic: This is a redirect to a subtopic of the redirect's title.
If the redirect topic is detailed enough to sustain its own article, then use {{R with possibilities}} and {{R printworthy}}in addition. If notability of the subject is supportable, then by all means be bold and convert this redirect into an article about the topic.
From a printworthy page title: This is a redirect from a title that would be helpful in a printed or CD/DVD version of Wikipedia. See Wikipedia:Printability and Version 1.0 Editorial Team for more information.
When appropriate, protection levels are automatically sensed, described and categorized.