It has been years since I bought a tube and I honestly don't know what's out there.
I need a tube for a shotgun I'm purchasing this week; it's a Remington 870 12ga, with a 21" barrel, 3" chamber. I plan on using Remington Hevi-shot or Winchester XX with 4, 5, or 6 shot.
Like I said to Rooster. The Jelly Head is tough to beat. I'm sure you can spend quite a bit more money and get an Indian Creek tube, but for $50 it's awfully hard to beat the Primos choke.