I have actually seen them a West Marine at one time. They are expensive, but what isn't on a boat.
I checked their website and nothing showed up. They may have dropped the line as it would not be a large mover, yet does take up a fair amount of shelf space.
I even found a listing from 2002 about West Marine carrying that product.
http://www.marinelink.com/Story/Pref...rine-4630.html