Blowoff for Better Bottles

[Tubbster85]

I am planning on getting a 6gal Better Bottle. I would like to use a blow off assembly for this, it would just make me feel better. I was looking at the drilled stopper with a lip, part number 40490 on northernbrewer.com, and was wondering what size tubing would fit that? Or does someone have a better way of doing it?

 

[Golddiggie]

Same tubing you use for your siphon/racking cane... Think it's 5/16" ID... I've jammed it into the airlock opening in the bungs/stoppers before. Just make sure you have the other end in a 1/2 filled jug of StarSan solution. Also have the jug on the floor so nothing flows back into the BB...