Have an Orion Ultra-Block Filter for sale. Used sparingly over last few years and kept in case when not in use. Went to a 2" OIII.... is my reason for selling. Will accept PayPal with no extra charges. $55 Shipped. Boxed and ready to ship USPS Priority.
NOTE: Don't be confused by this filter. It reads both SkyGlow and UltraBlock on the side of the filter for some reason but is really an UltraBlock. Please be familiar with the difference. Really performs well on the Veil.