I don't have one, but going by Celestron's spectrum graph
http://www.celestron.com/c3/images/f...lpr_filter.gif it's fairly wide, much like the Lumicon Deep Sky. It's kind of between the Astronomic CLS and UHC-E in bandwidth but shifted slightly in the spectrum.
It seems kind of wide to call it a UHC filter.
Edit, looks similar to the Baader UHC-S.