I have a Celestron Light Pollution Reduction filter - model #94127A, that I'm no longer using. This filter is built for a SCT, it screws onto the rear cell of the SCT. I actually used it on my Meade LX-200.
The filter is in good condition with no scratches on the glass. I have the original box and the instruction page.
Note: this is a larger aperture LPR than the standard 1.25" filter. This will attach to the rear cell of the scope. It also can be attached directly to a focal reducer.
Asking $58.00 shipped in CONUS.
Thanks for looking,