Vacuum Reservoir Check Valve Difference

[captbaldo]

A few months back my van started only blowing out of the defrost vents. I've pretty much learned as much as I can from this site and others on fixing this vacuum leak. Now on the vacuum reservoir the hoses that connect there are connected via a check valve. That is this picture Check Valve 19A563-A or YG-193.JPG

I contacted ford and ordered the part for my van (02 Ford Windstar LX) and received this valve check valve new.jpg

Obviously both parts look different, but I'm not sure if they do the same thing. Ford no longer is stocking the older looking valve but only the newer looking one. I haven't yet tried attaching the new valve yet, but was just wondering if anyone has any insight as to what I should do, differences between the valve's etc... Any info is much appreciated. thanks.