Hi all,
Are there any bitz sleuths who can find this bit?

https://www.bitsandkits.co.uk/sector...n-p-20510.html

It's listed on bitsandkits as a "Sector Imperialis Building Big Fan", but I can't find it on any sprue. If anyone does have that bit, could you tell me how big it really is (ie its diameter)?
Many thanks!