Need help finding some 20mm to QR adaptors for a front wheel i have laying around.

When i google, Abbah hub adaptor, all that i can find is NonDisc Side 20mm to QR Adaptor End Cap. I'm assuming NonDisc Side means the side that the disc brake does not mount to, right? Or is this all i need, just 2 of these?
http://www.bikesonline.com/sun-ringl...or-end-cap.htm
any one come across this issue?