Kendrick Baader visual solar filter. #6007 fits tube OD's 130mm-140mm. This filter from Kendrick is mounted in a white enameled metal ring with three nylon set-screws to hold the filter securely on the scope. $45 includes paperwork, a GladWare container with foam to protect the filter when not in use, and insured shipping in CONUS. Prefer PayPal(no credit cards), otherwise USPS money order.
Thanks for looking!