Older tube, 11 7/8th" ID. Just over 12 1/4" OD. 60" length. Seems to be a composite tube with fiberglass outer shell. Aluminum end rings.
Has some scrathes and holes from previous hardware and focuser but overall in good condition from a cosmetic standpoint. Structure is excellent. A fiberglass tube from Parks this size would cost $250 plus shipping. Make offer. Will need to pay for shipping also.