I think it's this:
http://bayareaamusements.com/Merchant2/merchant.mvc?Screen=PROD&Product_Code=MP-02-4934
I just ordered one. I think this may be the solution to the problem I posted here:
http://pinside.com/pinball/forum/topic/sttng-delta-quadrant-ramp-question
That's it, 02-4934.
A few pics attached.