David,
What is the diameter and height? I have a whole big box full of misc. tube shields.If I have one that will fit I will send it to you. Have you tried to make one? I have done it several times with great success. Just used tin snips and some scrap sheet metal. Rolled the edges,crimped the edges together using a stovepipe crimp and I was in buisiness.
Jon.
Jon,
I have not tried to make my own, but if you have some extras laying around, I'll try and get a measurement off to you so you can possibly match it up. Thanks, David