This is a tri-clamp 90° elbow. The tri-clamp ferrules are 1/2″.
We use the small version on the top of our Sabco Fermenters to provide a stable mount for valves. We’re sure you’ll have other interesting ideas for them, too.
We make these in two different sizes. The small elbow has a radius of 2 3/16″. The large elbow has two different extension lengths. One is 3 3/8″ and the other is 4″.