I can't believe anyone would pay that much money for that thing. It's nothing more than a toilet valve system you could make on your own very easily.
Now the horizontal nipples............ Those are the best things since sliced bread!!! ;-)
I second this!!!
Here are some pictures of my 5 gallon waterer..... It's the square "wind fresh" bucket with the horizontal nipple.
I tried EVERYTHING else over the past year and this is the BEST BY FAR!!!!
Look for a link in my signature line on how to make one of these very cheap!