Originally Posted by msehler
What's the difference (in purpose) between this and a $15 bazooka tube installed on a boil kettle?
The purpose would be the same - to filter stuff out of the wort as you drain the kettle. If you can attach the bazooka tube directly to your ball valve without a coupler you should be able to drain the kettle pretty well by tilting it forwards while draining. If you need to use a coupler you'll end up leaving a lot of wort behind in the kettle.
Most bazooka tubes I've seen cost $20 or more (including shipping), so the tea ball is a little cheaper, and I think will pull more wort out of the kettle than with a bazooka by the added advantage of using a pickup tube. I think the tea ball has a slightly finer mesh to it than my bazooka tube too. I used to use a bazooka in my MLT until I switched to a false bottom for fly sparging.