There are about three threads on this here. I think the search button should be removed.
![laughingdp](http://ducatimonsterforum.org/Smileys/classic/laughdmf.gif)
In one of those threads, I posted the part numbers. I got them from Omega.com
Here they are (metal with shut-off valves on both halves):
FT-LCD170-05: $24 (5/16" ID hose barb, In-line, 2.00" Length, Shutoff, Coupling body 1/4" flow);
FT-LCD220-05: $15 (5/16" ID, Hose barb, Straights, 1.85" LCD Length, Shutoff, Insert 1/4" flow).
Here's the thread:
http://ducatimonsterforum.org/index.php?topic=21234.0 (look 3/4 of the way down page 1)
BTW, a good tip from Spidey (or maybe it was Speeddog): orient the feed and return disconnects in opposite directions. That way, you'll never mix them up.