Could perhaps be either of the ones shown on the MyAstroShop website here:
http://www.myastroshop.com.au/produc...rodID=MAS-052A
Not sure which one the Andrews site refers to but, the second one appears identical to the Orion SteadyPix Deluxe which BINTEL stock for considerably cheaper than the one shown on the above website.
Edit: Did a bit of an internet search for the code associated with the product on the Andrews site. On reflection, might not be either of the products shown on the MyAstroShop website. Appears it might be a specific adapter for Vixen LV EPs. Might be worth calling Andrews to clarify.
Found info on a Vixen Camera Adapter LV-3903 (Andrews lists LV-3902) here (bottom of page)
http://vixenamerica.com/Products/Def...bose=Accessory