I have a very nice Parks fiberglass tube suitable for a 16" mirror. This tube was originally designed for an f-4 cassegrain. I also have the protective shower cap and a form-fitting protective bumper to protect the metal ring at the top. The tube has only a few minor scratches and dings but its overall appearance is excellent. The outside diameter is 19". The inside diameter is 18-3/8" and the height is 67-1/4".
I do not know how I would ship this safely so I am selling it for pickup only. I would be willing to transport it a reasonable distance to meet the buyer, but at this price, the buyer should be willing to expend some extra effort to obtain it. Pickup is from Gainesville, FL. Asking $200.00.