I'm liking all these ideas because I'm going to be building a new darkroom in a couple months, and need to squeeze as much quality gear out of the money available.
That crossed my mind too, and found this frugal alternative;
http://www.leevalley.com/garden/page.aspx?c=1&p=10370&cat=2,2280,33160&ap=2
Has anybody tried these? They aren't 'lab quality', so I'm not sure if they would drip from the fitting.
Murray
Yes, I have them fitted on everything. I have a kitchen-sink type sprayer, a vinyl hose, a Zone VI washing tank, a Zone VI 11x14 archival print washer and a roll film washer. They all have male brass fittings and my water panel has two female brass fittings.

