Originally Posted by autobaun70
I just used a standard schedule 40 PVC Reducer. 3" to 2" I think. For the arms, I just used standard plated threaded rod. It isn't getting put directly in the wort, so no real need for food grade. Been using mine for over a year and no rust or issues.
This ^^^^^ If I were going to worry about something, it would be the plastic paint strainer bag that is in the boiling wort for an hour.
I got all my supplies (same as described by autobaun) at my local Ace Hardware.