1.25" Series 4000 Broadband Nebular Filter in good condition with case. Part #908B - threads into 1.25" eyepieces. Made in Japan.
I bought it 2 years ago and used it a few times. I moved to a new house with much darker skies a year ago and haven't used it much since. So I'm reducing inventory. Sells for $85 new, I will sell for $65 shipped and insured in continental US.
Thanks for looking,