A kit for orienting leaflets of a replacement valve prosthesis (100) prior to securing the prosthesis to a delivery catheter (32), the kit comprising a frustoconical housing (34) having a tapered interior surface (60), a first open end (56), and a second open end (58), said interior surface extending from said first open end to said second open end and being configured to compress a prosthesis when the prosthesis is moved through said housing and an orienting member (38) configured to be positioned within said frustoconical housing and the prosthesis to orient the leaflets of the valve in a normal open position of the leaflets in response to blood flow through the valve.
