

If you scroll down through that catalogue until you get to page 12, you'll see a Male Threaded elbow with a shoulder on it, which is missing on the Threaded Directer pictured below it. But again, no nuts or washers pictured.
I'm now using a bigger tun and run the copper pipe through the drain plug as in this link http://brodiescastlebrewing.com/index.p ... 9#msg10819
You might need to go to a plumbing supplier with the cooler and let them know what you're trying to acheive if you can't find something suitable at a hardware.
Cheers, Ed