Some people hack the lines going to the rack and pinch them off. This ruins a good set of lines someone may actually need at some point.
I simply removed the lines and "cooler" assembly. All you have to do is screw the new fittings in.
I'll even go a step further, go to your local O'Reilly auto parts store, and purchase 2 fittings. One is Edelmann pn: 120600, the other is pn: 209600. They are not the same size!!!! One is a standard pipe thread, the other is standard thread... And at a whopping $2.00 each, this is easily worth the money.
here's a pic of the installed fittings.

Untitled by McKenneyLevin, on Flickr