I prefer tubes that are around 14 to 18 inches tall, so that there is no chance of water reaching my lips.
A great, simple, pretty straight tube with 1 honeycomb disc (i wish there was one more)
Doesn't hold too much water. I still like this tube a lot, it's just not my favorite.
I like to have a lot of tubes and ashcatchers so I don't hafta clean them too often, and alternating between a lot of combinations keeps all your stuff cleaner longer.